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

"I am confident that we're going to hold the House," Hoyer said. "I think we can expand our membership in the Senate to beyond 50."

His confidence -- a sharp pivot from earlier in the cycle, when Republicans predicted a "red wave" as they attempt to retake the chamber -- comes as gas prices have been dropping, though inflation and grocery prices remain sky-high. A recent Siena College New York Times survey found Democrats up two percentage points over Republicans among registered voters -- a promising statistic for Democrats as they forge ahead following a slate of promising primary upsets.

"We've had two huge victories, actually, three but two members, one in New York, Pat Ryan, in a district that the Republicans were supposed to win, expected to win. Very credible Republican candidate on the other side. And we won that race," said Hoyer, also noting Mary Peltola's victory in Alaska against former GOP Gov. Sarah Palin for a congressional seat that Democrats haven't secured in decades.

Hoyer also referenced Kansas voters' overwhelming rejection of an anti-abortion rights referendum earlier this summer as a signal that Democrats may win on the hot-button issue.

"So, you know, in a red state, a Republican state, that we won that election as well, frankly."

In front of the U.S. Capitol on Wednesday, Democratic House leaders touted their legislative inroads on health care over the past few years along with members of the congressional "class of 2018"-- when their party flooded the House during an unprecedented "blue wave," the largest Democratic gain in decades.

Democratic Reps. Susie Lee of Nevada, Lauren Underwood of Illinois and Susan Wild of Pennsylvania were among the speakers who followed House Speaker Nancy Pelosi and House Majority Leader Steny Hoyer in stumping about what they said were the health care achievements in the Inflation Reduction Act. All three are now fighting for third terms in the House.

"I stand here today with my colleagues Lauren Underwood and Susan Wild. We were part of the history making class of 2018, while Republicans [were] trying to repeal the Affordable Care Act time and time again. Millions of Americans stood up and said hell no. And they elected us to come to Congress so that we can deliver. Three-and-a-half years later, not only did we protect it, we expanded it to millions of Americans."

The press conference featured stories from advocates expressing their gratitude for parts of the IRA like lowered costs of prescription drugs, expected from a provision in the bill that empowers a federal agency to negotiate with health insurers over the prices for prescription drugs under Medicare.

Their speeches are "a great reminder that [in] three and a half years, what the class of 2018 has already accomplished and how much more these leaders will do," said Rep. Peter Welch, D-Vt.

The governor of Florida, Ron DeSantis, has been dominating the politics of the week, as flight trackers, the White House, a Texas sheriff and his political opponents try to figure out what he has already done -- and what he might do next.

But there are fresh signs of the political climate shifting yet again ahead of the midterms, in races far from Florida and from the U.S.-Mexico border.

A new Spectrum News/Siena College poll out of Wisconsin shows a virtual tie in the Senate race, with Democrat Lt. Gov. Mandela Barnes at 48% and GOP Sen. Ron Johnson at 47%. That comes after Barnes and Democratic Gov. Tony Evers have been hammered by TV advertisements focusing on crime.

In Georgia, two new polls out Tuesday had Sen. Raphael Warnock now leading inside the margin of error against Republican Herschel Walker. Warnock has been criticized by his rival over urban crime rates and his support for the Biden administration's economic and immigration policies.

Read more here.

–ABC News' Rick Klein

Frank LaRose, Ohio's Republican secretary of state running for reelection with former President Donald Trump's endorsement, said Tuesday that -- in a break with Trump -- mail-in ballots represent a "secure" method to vote in this year's midterms.

At a brewery in Cleveland, LaRose said he was happy he received Trump's endorsement but that the support doesn't mean the two "agree on everything." Trump has lambasted absentee and mail-in voting, baselessly claiming without evidence that those methods are ripe for fraud.

"I don't speak for President Trump. He speaks for himself and does so very well," said LaRose. "But that doesn't mean we agree on everything. I can tell you that Ohio runs secure elections. In many ways, we're really the example for the rest of the country. And President Trump himself has said that Ohio runs clean elections."

LaRose defended his record, leaning into GOP talking points on drop boxes and other voting issues.

"We faced this in Ohio in the month of September of 2020. I was sued five different times. And they were asking us to expand drop boxes to locations that we couldn't secure so we were worried about doing that. There were lawsuits that were asking us to stop doing signature verification, which I thought was a positively terrible idea," LaRose said.

-- ABC News’ Paulina Tam