It’s fascinating to the max to watch what has happened to today’s Republican Party.

It is at war with itself. Immigration is the catalyst that has ignited the spark among the gaggle of GOP pols seeking the party’s presidential nomination.

There once was a time when Democrats were torching each other. The Vietnam War split Democrats between the Hawk Wing and the Dove Wing. Stay the course in ‘Nam or get the hell out of there … immediately if not sooner!

Well, the intraparty division sent Democrats into the presidential electoral wilderness for a time. Then Watergate occurred and the nation elected Democrat Jimmy Carter for a single term in 1976; Republican Ronald Reagan’s election in 1980 launched a 12-year run of GOP White House control.

Democrats are relatively united these days.

Republicans? They’re fighting like the dickens over immigration.

Two of the main protagonists are Sens. Ted Cruz of Texas and Marco Rubio of Florida. Rubio has accused Cruz of endorsing “amnesty” for illegal immigrants.

Cruz has fired back with his own allegations that Rubio has flip-flopped on the issue.

It’s all quite fun to watch, at least it is to me.

Cruz and Rubio both are playing semantics over what they — and each other — have said about immigration. Cruz seeks to become the most conservative of the Gang of 14 (GOP presidential candidates) on the issue. I don’t know what Rubio is trying to do, other than trying to muddy up Cruz’s stated positions on immigration.

They both share a common dislike of President Obama’s policies, which include granting temporary amnesty to millions of undocumented immigrants while sparing the children who were brought here by their parents illegally the misery of being kicked out of the only country they’ve ever called home; that would be the United States of America.

I don’t know when the pendulum will swing back to the old ways of Democrats tearing each other’s lungs out. I guess it will … eventually. For now, though, leave it to those silly Republicans to provide the entertainment.