The former vice president hasn’t scheduled a visit so far. But he has quietly reserved $5.8 million for an advertising blitz through the final four weeks, starting Tuesday.

Viewers in Dallas-Fort Worth especially will have trouble avoiding his pitch, which also targets voters in the Houston, San Antonio and Austin markets.

“It’s a hell of a lot more than anybody else ever spent, that’s for sure,” Texas Democratic Party chairman Gilberto Hinojosa said. “This is a very good sign.”…

“They’re sticking their toe in the water to see how warm it is and I think that they’re feeling good about the temperature,” said Hinojosa, after joining Emhoff at a get-out-the-vote event in Edinburg.