Politicians have this uncanny and maddening knack of burying the hatchet — and not in each others’ backs or skulls.

They campaign against each other, say some highly critical — even hurtful and hateful — things to and about each other. Then they declare winners and losers and all is forgiven. Ostensibly, at least.

They all do it. Democrats do it to each other, as do Republicans.

The latest example of this is in Texas, where GOP Sen. Ted Cruz is fighting for re-election to his seat against Democratic challenger Beto O’Rourke.

Cruz is enlisting the aid of a man he once labeled as “amoral,” a “pathological liar” and a “coward.”

Yes, I refer to the president of the United States, Donald Trump, against whom Cruz campaigned for the presidency in the 2016 GOP primary. You see, candidate Trump had called Cruz “Lyin’ Ted,” he implied that Cruz’s father might have been involved in President Kennedy’s murder and then he posted that hideous photo on Twitter of Cruz’s wife, Heidi.

Cruz was rightfully enraged, outraged and aghast at the treatment. That’s when he hung those epithets on his GOP foe.

Now he’s wanting Trump to campaign for him. All is forgiven. The sniveling sucking up that Cruz is performing hasn’t gone unnoticed out here in the rest of the state and the nation.

Frankly, he was right to say what he said about Trump during the GOP primary campaign. He is demonstrating a lack of spine now as he seeks the president’s help in his fight for re-election.

Sickening, man.