Conservative leader and former Arkansas Gov. Mike Huckabee (R) has endorsed Senate Minority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellMcConnell expects Paul to return to Senate next week Former Hill staff calls for mandatory harassment training Gaming the odds of any GOP tax bill getting signed into law MORE (R-Ky.) in his primary, touting his work "fighting on the front lines" against President Obama.

“It isn’t easy fighting on the front lines against Barack ObamaBarack Hussein ObamaOvernight Cybersecurity: What we learned from Carter Page's House Intel testimony | House to mark up foreign intel reform law | FBI can't access Texas shooter's phone | Sessions to testify at hearing amid Russia scrutiny Russian social media is the modern-day Trojan horse Trump records robo-call for Gillespie: He'll help 'make America great again' MORE and his allies in Congress every day but someone has to do it. There is nobody who has done it more effectively, who asks for less recognition for his work, than Mitch McConnell," Huckabee said in a statement accompanying the endorsement.

"I’m proud to endorse Mitch today and stand next to him for the next fifteen months until he is re-elected in Kentucky and then elected the next Majority Leader of the U.S. Senate," he added.

McConnell faces a primary challenge from local businessman Matt Bevin, who has been picking up steam with Tea Party activists locally and nationwide, earning the endorsements of a number of Kentucky Tea Party figures and the conservative group the Madison Project.

But McConnell, too, has picked up a number of notable local and national conservative endorsements, including the support of Tea Party darling Sen. Rand PaulRandal (Rand) Howard PaulGOP senator asks to be taken off Moore fundraising appeals Red state lawmakers find blue state piggy bank Prosecutors tell Paul to expect federal charges against attacker: report MORE (R-Ky.), and now Huckabee.

The former Arkansas governor holds considerable clout among conservatives and evangelical Christians, and has been known to endorse both incumbents and challengers in primaries.

This cycle, he's also backed Sen. Lamar AlexanderAndrew (Lamar) Lamar AlexanderObamaCare becomes political weapon for Democrats Senate passes resolution requiring mandatory sexual harassment training Sen. Warren sold out the DNC MORE in Tennessee, another incumbent Republican facing a possible primary challenge.

Last cycle, Huckabee endorsed former Rep. Todd Akin (R-Mo.) in his bid for Senate, and reaffirmed that support after Akin made controversial comments concerning rape and pregnancy that caused other Republicans to abandon him and ultimately contributed to his defeat.

Democrats are charging that, for that reason, the McConnell campaign's embrace of Huckabee, while planning to roll out a group of female supporters from across Kentucky on Friday, amounts to "hypocrisy."

"Mitch McConnell’s shameless embrace of a Todd Akin sympathizer with a record that’s as dangerous for women as his own on the same day he launches a women’s group for his campaign sends a message loud and clear to the women of Kentucky: Mitch McConnell is the walking, talking embodiment of everything that’s wrong with Washington and a dangerous hypocrite who has no interest in fighting for them,” said Justin Barasky, a spokesman for the Democratic Senatorial Campaign Committee.