The Democrats are using all the opportunities to win as many votes as they can for the mid-term elections that take place on November 8, including former President Barack Obama, who continues to be the most popular figure among Democratic voters.
Polls show Republicans could take both chambers, leaving Biden with little room to maneuver in the face of challenges such as inflation.
The project to protect abortion in the form of a law would also be postponed.
"Basic rights are on the ballot. Truth and facts, logic, reason, and basic decency are on the ballot. Democracy itself is on the ballot. The stakes are high", said Barack Obama, former US president who is also on the ground
Trump's shadow also hangs over the midterm elections, with the former president flirting with the idea of running again in 2024.
Many of the Republican nominees for the House and Senate have been publicly announced, but Trump has not yet.