Midterm elections live updates: 1 week until high-stakes elections

President Donald Trump, on his way to a campaign event in Texas on Tuesday, signaled that he would work with Democrats if they regained some control in Congress after the midterms -- but cautioned that he has a "strong veto." He also said he will respect the results of the elections -- but notably added "if they’re honest."

Trump has repeatedly made unfounded claims that there was widespread voter fraud in past elections.

ABC News White House Correspondent Karen Travers asked Trump about his level of concern about GOP Senate candidate Ken Paxton’s chances in the competitive race against Democratic candidate James Talarico.

Trump left the door open to the possibility of Paxton’s loss, saying, "you never know -- it’s politics," but then claimed the Republican would do "very well."

-ABC News' Isabella Murray and Michelle Stoddart

President Donald Trump on Tuesday makes his fourth campaign season (since Labor Day) trip to Texas where he is set to hold two rallies in the state as he and Republicans make their closing arguments in battleground races.

With just one week before Election Day, Trump will attend rallies in Lubbock and Corpus Christi.

All eyes are on the Texas Senate race as Republican Ken Paxton and Democrat James Talarico remain locked in a neck-and-neck contest. Paxton confirmed he will attend and plans to deliver remarks at both rallies. Rep. Monica De La Cruz, who is in a toss-up race in the 15th Congressional District against Tejano musician Bobby Pulido, said she will also be in attendance.

Talarico will also speak at a rally in Lubbock, Texas, on Tuesday, according to a campaign advisory.

More than 20% of registered voters in Texas have voted early.

-ABC News' Hannah Demissie, Diana Paulsen and Emily Chang

The 2025-2026 election cycle has become the most expensive cycle on record, according to media tracking firm AdImpact.

As of Monday night, there has been $11.21 billion in ad spending and reservations in the 2025-2026 cycle, the firm said.

According to AdImpact, that is now more than the $11.20 billion spent for the full 2023-2024 election cycle.

-ABC News' Oren Oppenheim

Thirty-five Senate seats are up for grabs when Americans head to the polls on Nov. 3. A key handful of them will be critical in determining whether Democrats or Republicans control the chamber next year.

As both parties prepare for the final leg of the campaign, there are closely watched Senate races in Michigan, Texas, Alaska and several other states.

Read more about the match-ups.

-ABC News' Allison Pecorin