Hillary ClintonHillary Diane Rodham ClintonNevada Senate passes bill that would give Electoral College votes to winner of national popular vote 2020 Dems break political taboos by endorsing litmus tests Iowa Democrats brace for caucus turnout surge MORE returned to the stump in Kentucky on Saturday, making a final push for Alison Lundergan Grimes’s campaign to unseat Senate Minority Leader Mitch McConnell.

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The former secretary of State is holding a pair of events on Saturday with Grimes, appearing in the state’s suburbs of Cincinnati, Ohio and in Lexington.

In Highland Heights, Ky., Clinton again employed a populist message that has become increasingly popular for Democrats this campaign season, saying Grimes would fight for an increase in the minimum wage and pay equity for women.

"This is not just a contest between a permanent Washington fixture and a fresh face," Clinton said. "It's a contest between old thinking and new thinking.” 

Both Hillary and Bill Clinton have been fixtures on the campaign trail this year, as Hillary mulls a widely expected 2016 bid for the White House. But the Clintons might be exerting the most energy to elect Grimes, Kentucky’s secretary of State.

Grimes’s father and the Clintons are long-time friends, and Bill Clinton joked this week about filling out tax forms in Kentucky.

But even with the Clintons’s efforts, McConnell is still favored to beat Grimes on Tuesday. If McConnell wins and the GOP captures six seats, the Kentucky Republican would be in line to become the new Senate majority leader.