Congressional Republicans — and Democrats, for that matter — keep insisting that national security should be above partisan politics.

What, then, is going on with GOP threats to shut down the Department of Homeland Security because its congressional caucus is so upset with President Obama’s executive order on immigration?

http://www.reuters.com/article/2015/02/15/us-usa-congress-homeland-idUSKBN0LJ0P520150215

Good bleeping grief, people! The Homeland Security department, as its very name says, is charged with protecting the United States against internal and external threats. The 9/11 terrorist onslaught produced the agency, correct?

Now, though, it’s becoming a political football, being kicked around Capitol Hill by congressional Republicans who just cannot get over the notion that the president acted within his constitutional authority to delay the deportation of several million undocumented immigrants.

They are threatening to sue Obama over his action. They want to repeal it. They are insisting that he acted unlawfully. Yet no one has produced a shred of evidence to suggest that the president acted outside of the authority granted him by federal statute and the Constitution of the United States of America.

DHS money is going to run out on Feb. 27 unless Congress approves money to pay for it.

The House of Representatives has approved money for DHS, but have added some amendments stripping the president’s executive action of its authorization. Senate Democrats object to the GOP amendments and have held up the appropriation, drawing criticism — quite naturally — from House Republicans. Speaker John Boehner said the GOP has done its job; now it’s up to Senate Democrats.

That’s all fine, except Senate Democrats object to GOP complaints about the executive actions on immigration, which were legal and constitutional.

Thus, the gamesmanship.

What in the world has happened to good government?