Donald Trump is concluding his electoral campaign with a whirlwind sprint across the country to turn out his most fervent supporters and thwart Democratic designs to curtail his power. Most surveys give Democrats strong odds of gaining congressional seats needed to take control of the House, and Democrats are optimistic about their chances in the Senate, with seven seats closely locked in the polls. Republican insiders describe a Senate map that's still largely in toss-up territory or within reach for a win, but it's unclear whether Trump's rallies are a help or a distraction due to his low approval ratings and off-message remarks.

Rep. Rosa DeLauro of Connecticut expects a Democratic wave in the midterm elections, arguing that concerns over affordability and the cost of living are driving voters toward her party. DeLauro says that if Democrats win the House and she reclaims the Appropriations Committee gavel, she would focus on affordability, oversight and accountability rather than impeachment.

On today's show, Bloomberg This Weekend hosts David Gura and Lisa Mateo speak with:

• Rutgers University Polling Director Ashley Koning and Bloomberg Opinion Senior Executive Editor Tim O’Brien, on the the reliability of polling
• Representative Rosa DeLauro (D-Connecticut), on her expectations from the midterm elections
• Dan Sheridan. Brooks Running CEO, on today's New York City Marathon
• Plus, David, Lisa, and Nathan Hager discuss the stories you might have missed this week on BTW.

For more conversations like this, watch and listen to Bloomberg This Weekend live on Saturdays and Sundays from 7AM-10AM ET. Watch on Bloomberg Television, listen on Bloomberg Radio and stream the show live on the Bloomberg Business app and Bloomberg.com/video.