Clinton, who has made frequent stops for Democratic candidates this cycle, will participate in a Las Vegas pre-early-vote rally, according to Reid's campaign. 

"The rally will highlight the clear choice Nevada voters have between Senator Reid’s track record fighting to create jobs and Sharron Angle’s extreme and dangerous agenda," the announcement says. 

Even though Clinton had a touchy relationship with President Obama during his 2008 Democratic presidential primary against his wife, Hillary Rodham Clinton, the former president has become a public speaking fixture for Democratic candidates this cycle.

On Monday, Clinton traveled to Kentucky for an event with Senate nominee Jack Conway (D) and to West Virginia to stump for Gov. Joe ManchinJoseph (Joe) ManchinOvernight Energy: EPA aims to work more closely with industry Overnight Finance: Lawmakers grill Equifax chief over hack | Wells Fargo CEO defends bank's progress | Trump jokes Puerto Rico threw budget 'out of whack' | Mortgage tax fight tests industry clout Lawmakers try again on miners’ pension bill MORE (D), who is running for the late Sen. Robert Byrd's (D-W.Va.) seat.  

Clinton is scheduled to campaign for Colorado Democratic Sen. Michael BennetMichael Farrand BennetAmeriCorps hurricane heroes deserve a reward — don’t tax it Joe Buck defends 'nonviolent protests' at NFL games Patriotism is no defense for Trump’s attacks on black athletes MORE next Monday, even though he had endorsed his primary opponent Andrew Romanoff.

Angle led Reid by four points in a Rasmussen poll released last week.