Patrick Murphy and Alan Grayson lead most GOP candidates in one-on-one polls.
The suburban Pittsburgh mayor lags far behind in polls and in fundraising.
The ad focuses on Ayotte’s tenure as senator and as New Hampshire's attorney general.
An Indiana House representative running for the Senate said the U.S. has become less safe under Obama.
Senate hopefuls are keeping their distance from Obama's last-ditch effort to close the prison.
The paper endorsed Andrea Zopp over Rep. Tammy Duckworth.
Rep. Jolly previously called on Trump to drop out.
"Maybe he's been with us too long," Democrat Patty Judge says.
The GOP senator is breaking with his party's Supreme Court strategy.
Rep. Jolly says "this is one of the more uncomfortable speeches I will ever give."