ABC News' Jon Karl breaks down a plan put together by a right-wing think tank and what former President Donald Trump said he might do if he's elected.

ABC News' Linsey Davis speaks with former House Speaker Kevin McCarthy on the GOP's calls for unity and what Trump's VP pick, J.D. Vance, could mean for the party's future.

One of the most anticipated moments of Trump's campaign happened Monday, when former President Donald Trump named 39-year-old Ohio Sen. J.D. Vance as his running mate.

ABC News’ Jon Karl shares the reaction to former President Donald Trump choosing the Ohio senator as his new vice presidential candidate.

Donald Trump tapped a vocal defender in the form of Sen. J.D. Vance, R-Ohio, to join his ticket -- and in doing so, is helping set the course of the GOP's future.

J.D. Vance could now reach new heights in his transformative career, as former President Donald Trump has selected him as his running mate.

J.D. Vance jumped on the national stage eight years ago through his book "Hillbilly Elegy." Now he's Donald Trump's running mate.

As Trump pushes false claims about the 2020 election, those in the running to be his VP pick have been cautious when asked if they'll accept the 2024 election results.

Former President Donald Trump will give is first speech since his attempted assassination and is expected to announced his running mate.

The Republican senator says he's confident the convention will be a time for unity following the attempt on former President Donald Trump's life.

Donald Trump is calling for unity following the Butler shooting while some of his vice presidential hopefuls and allies have begun to shift blame onto Joe Biden.

Doug Burgum has been serving as the 33rd governor of North Dakota since 2016.

When Florida Sen. Marco Rubio was first elected to Congress, he was seen as a rising star in the GOP. Now, he’s being looked at as a possible VP Pick for Donald Trump.

Doug Burgum has come a long way since his failed presidential bid. Now, he's one of the top candidates under consideration for being Donald Trump's running mate.

Donald Trump wants to distance himself from Project 2025, a conservative plan to overhaul the government -- but it's led by many of his former administration officials.

Former Vice President Mike Pence has joined a faction of conservatives decrying the 2024 RNC platform rubber-stamped by Donald Trump because of softened abortion language

After Joe Biden's disastrous debate, Democrats worried about the president's chances in November are mired in a debate of their own: shut up or shout louder.

Different from 2016, it will show a party in lockstep with the former president.

The Republican National Committee's platform committee adopted a new GOP platform on Monday -- and it addresses the issue of abortion.

As Donald Trump gets closer to announcing his vice presidential pick, many of his top candidates have a long history of attacking him personally and politically.

Nikki Haley continues to win some votes against Donald Trump in the Republican primary, despite the former president clinching the party's nomination on March 12

Nikki Haley said in a new interview that she agrees with an Alabama Supreme Court ruling that frozen embryos are considered children in the state

DeSantis and Haley see opportunity in New Hampshire and South Carolina to, somehow, cut into Trump's huge lead in popularity in the Republican primary

Christian Ziegler, who is facing a rape allegation that he denies, on Monday was voted out as Florida Republican Party chair during a closed-door meeting in Tallahassee

DeSantis sought to contrast himself with Trump while defending against criticism of his campaign and speaking about his plan for the southern border and other issues

DeSantis criticized Trump for calling Florida's six-week abortion ban "terrible," with DeSantis accusing his 2024 rival of being "a different candidate" than 2016

Vivek Ramaswamy said during a speech in the nation's capital on Wednesday that he wants to cut the federal workforce by 75% -- in part by dismantling the government.

Ron DeSantis is ending his 2024 Republican presidential campaign after failing to overtake Trump in polling or in the early vote

Trump only winning 60% of the vote in contested Republican races so far should be taken as a warning sign, Nikki Haley said on Monday

Former President Donald Trump has had a particularly good few days in his bid for a second term. And Republicans are feeling their oats.

This memo did not specifically mention abortion or reproductive rights but doubled down on the notion that the new platform will reflect Trump's political stances.

What used to be an important ritual in the presidential election cycle has lost some of its power, according to experts, as many voters have already made their decision.

President Joe Biden and former President Donald Trump will face off in-person Thursday for the first of two presidential debates this year.

ABC News’ Linsey Davis speaks with a former senior adviser to Sen. Tim Scott’s (R-SC) campaign, Matt Gorman, before the presidential debate where both sides seek to gain support in a tight race.

When former President Trump and President Biden debate later this week, they will be looking to appeal to voters – but many said are not looking forward to the rematch.

ABC News' Linsey Davis speaks with ABC News' Deputy Political Director Averi Harper and political strategist Mark McKinnon about both parties' tactics in advance of next week's presidential debate.

Tim Scott, who is on the short list to be Donald Trump's running mate, said Sunday he stands by his vote on Jan. 6, 2021, to certify President Joe Biden's 2020 victory.

ABC News’ Jonathan Karl interviews Senator Tim Scott, R-S.C., on “This Week.”

Nevada Republican Sam Brown cruised to victory in the GOP Senate primary. Now, he'll have to compete against a well-heeled incumbent -- and Republicans are nervous.

Former President Donald Trump met with GOP leaders on Capitol Hill.

Voters in the Republican primary for South Carolina's 1st congressional district voted on Tuesday.

Donald Trump's 2024 campaign and Republican lawmakers are seizing on Hunter Biden's conviction to escalate their attacks on President Joe Biden.

Former President Donald Trump endorsed Sam Brown in Nevada's Republican Senate primary on his social media platform Sunday night.

Sen. Tim Scott sees a path where Black and Hispanic voters could help former President Donald Trump win reelection.

The National Republican Senatorial Committee released a memo on Tuesday that advises GOP Senate candidates to underscore their support for birth control.

The House passed a GOP-led bill that would impose sanctions on the ICC after its top prosecutor recommended war crimes charges against Israel's Netanyahu.

Donald Trump and Senate Minority Leader Mitch McConnell have again publicly split -- this time over the GOP's chances of retaking Congress in November

Republicans have long proclaimed themselves the party of "law and order." That philosophy, however, doesn't seem to have extended to the conviction of Donald Trump.

Republicans continue to embrace election denialism by pushing efforts to ban noncitizens from voting (which is already illegal).

Former President Donald Trump on Tuesday endorsed Rep. Bob Good's primary challenger, state legislator John McGuire.