Mitch McConnell has wanted to become majority leader of the U.S. Senate.

I feel the need to remind the Kentucky Republican to be “careful what you wish for.”

He’s about to have his hands full. Not so much from Democrats, who are licking their wounds and trying to regroup from the pounding they took at the polls Nov. 4. No, McConnell’s worries well might come from within his own Republican caucus.

I’ll sum it up in two words: Ted Cruz.

Cruz is the freshman Republican from Texas who has delusions of grandeur, specifically the White House. He wants to be president someday. Maybe he’ll make a run for it in 2016. He might wait until 2020 and then go full force if a Democrat wins the ’16 contest.

But here’s ol’ Mitch, vowing to take President Obama up on a request to sip some Kentucky bourbon with the new majority leader. I believe deep down that McConnell really wants to “work with” the president. But he’s got that goofy caucus within his GOP caucus that won’t hear of it.

This is the tea party wing, led by Cruz.

It still amazes me that this freshman loudmouth has gotten so much attention in so little time.

Cruz wants to repeal the Affordable Care Act and replace it with … um, well we don’t know. He said something the other day about “net neutrality” is like “Obamacare for the Internet,” whatever the bleep that means. He seems to oppose immigration reform, which is odd given that he’s an immigrant from Canada.

Here’s the thing with Cruz. He isn’t alone in thinking this way. He’s just managed to become the mouthpiece for many of the hard-righties within the Senate who think as he does.

McConnell is more of an “establishment” guy. He’s actually got friends within the Obama administration, one of them being, for example, Vice President Biden, with whom he served in the Senate until Biden was elected VP in 2008.

So, the question can be asked of Majority Leader-to-be McConnell: Is the job you coveted really worth having if you’re going to have to fend off the challenges from your own extremist wing?

Good luck, Mr. Majority Leader.