Live updates: Trump to rally for Senate candidate Ken Paxton in San Antonio

What to know today TEXAS RALLY: President Donald Trump is holding a rally in San Antonio tonight with Senate candidate Ken Paxton and House candidate Carlos De La Cruz. Paxton is running a close race against Democratic state Rep. James Talarico in one of the highest-profile matches of the midterms. TONIGHT'S DEBATE: Iowa's Senate candidates, Republican Rep. Ashley Hinson and Democratic state Rep. Josh Turek, will face off in a debate tonight as Democrats eye retiring Sen. Joni Ernst's seat as a potential flip opportunity. Pennsylvania's governor debate between Democratic incumbent Josh Shapiro and Republican state Treasurer Stacy Garrity is also tonight. FLORIDA POLL: Republican Byron Donalds holds a 7-percentage-point advantage over Democrat David Jolly in the Florida governor’s race, according to a new NBC South Florida/Telemundo Station Group poll. The poll also found that Republican Sen. Ashley Moody is up by 10 points in her matchup against Democratic challenger Angie Nixon. MAINE SENATE RACE: Republican Sen. Susan Collins and Democratic challenger Troy Jackson debated for the first time last night, trading attacks over Trump, the cost of living and abortion in another of the most closely watched Senate races in the country.

Live updates and the latest news as Trump campaigns for Senate candidate Ken Paxton in Texas and the Republican candidates for governor and Senate in Florida lead the Democratic nominees in a new NBC South Florida/Telemundo Station Group poll.