Midterm campaign updates: GOP's Cheney endorses Ohio Democrat Tim Ryan for Senate

There's the campaign Republicans are running on inflation, crime and the Biden agenda -- a sprawling and broad case against Democratic governance that's being adjusted to fit particular circumstances in races across the map.

Then there's the campaign Democrats are running -- on abortion rights and against far-right Republicans, but also at times against the Biden White House on the southern border and the handling of inflation and the urgency under which all that and more is being addressed.

Enter, again, President Joe Biden. He makes a rare-for-this-cycle trip to battleground Pennsylvania on Thursday to campaign for Democratic Senate candidate John Fetterman-- and also to provide messaging cover for the many Democrats he isn't campaigning for in person, either because of their choice or the constraints of time.

The streamlined messaging includes stronger commitments on abortion, including Biden's vow this week that, in January, he will sign a bill to codify Roe v. Wade -- contingent on holding the House and picking up at least two seats in the Senate.

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–ABC News’ Rick Klein

With less than three weeks until the midterm elections, Georgians are already casting their ballots at a fast pace -- with vote counts on Tuesday surpassing 2020 presidential election records for day two of early voting, surging to nearly twice the early vote totals of 2018 at the same point.

The outcome of Georgia's Senate race could be critical in deciding the balance of power in Washington.

As Georgia entered its third day of early in-person voting on Wednesday, over 291,700 people have voted -- 268,050 in person and 23,690 absentee. In 2020, the early vote numbers after the second day were 266,403, and in 2018 they were 147,289, according to the secretary of state's office.

"We're extremely pleased that so many Georgians are able to cast their votes, in record numbers and without any reports of substantial delays," said Georgia Secretary of State Brad Raffensperger. "This is a testament to the hard work of Georgia's election workers, the professionals who keep our elections convenient and secure."

Georgia's second day of early voting totals marks a 75.3% increase from that same point in 2018 early midterm voting and an "astounding" 3.3% increase in the second day of early voting in the 2020 presidential election, the state's top elections official said.

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-- ABC News' Lalee Ibssa

Former Hawaii Rep. Tulsi Gabbard, who ran for president in 2020 as a Democrat and endorsed Joe Biden after her exit from the race, on Tuesday campaigned in Arizona for the state's Republican gubernatorial nominee Kari Lake, a fervent election-denier and Donald Trump loyalist.

The move follows Gabbard's dramatic public departure from the Democratic Party, denouncing it a week ago as an "elitist cabal of warmongers driven by cowardly wokeness." In Chandler, Arizona, Gabbard warned against those that "deny the existence of truth" before remarking with glowing support her endorsement of Lake, one of the most outspoken election-deniers.

"I feel like a rockstar up here, Tulsi," Lake said in front of at least 250 people. "You are a rockstar, Kari," Gabbard responded.

At the campaign event, less than three weeks ahead of the midterm elections, Gabbard acknowledged that some have told her it was "odd" that she would be campaigning for Lake in Arizona as a former Democrat -- but she dismissed those concerns.

"It's only odd if you're focused on the wrong things," Gabbard said of her endorsement. "If you're paying attention, you recognize that what we share in common, Kari and I and every one of you, is that pride, and it is the courage ... It is clear-eyed to recognize the threats to our safety, to our borders, to our communities, to our families and our kids that are coming from today's so-called woke radical Democrat Party."

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-- ABC News' Libby Cathey

On the GOP side, Sens. Tim Scott and Tom Cotton hit Ohio on Wednesday, ahead of Sen. Ted Cruz's trip on Friday, for Senate candidate J.D. Vance -- all following a succession of colleagues helping Republican Senate hopeful Herschel Walker in Georgia.

Also Wednesday, Virginia Gov. Glenn Youngkin campaigns for Arizona gubernatorial candidate Kari Lake, a day behind former Rep. Tulsi Gabbard -- the onetime Democratic presidential candidate who is now backing far-right candidates -- in campaigning for the Republican ticket there.

For Democrats, President Joe Biden follows first lady Jill Biden onto the trail on Thursday in Pennsylvania, while Transportation Secretary Pete Buttigieg leads the Biden Cabinet in making official visits with a side of politics. Sens. Cory Booker and Jon Ossoff spent campaign time in North Carolina over the weekend, and former President Barack Obama makes a three-state battleground swing next week.

Read more here.

-- ABC News' Rick Klein