Democratic Rep. Gerry Connolly Gerald (Gerry) Edward ConnollyJudge issues nationwide injunction against Postal Service changes House panel advances bill to ban Postal Service leaders from holding political positions Shakespeare Theatre Company goes virtual for 'Will on the Hill...or Won't They?' MORE (Va.) on Friday said President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE lives in a “delusional world fed by Fox News,” just hours after the president threatened to close the Mexico border if Democrats do not agree to provide money to build his border wall.

“I think the president lives in this delusional world fed by Fox News and a couple of right-wing talking heads and does not connect actions with consequences,” Connolly, who serves on the House Foreign Affairs Committee, said during an appearance on CNN.

“If you close the border you are going to re-invite huge swings in the stock market, you are going to jeopardize the economic progress we’ve made, and you’re frankly going to do a lot of damage to your own prospects for 2020 by inviting a recession,” he continued.

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Earlier on Friday, Trump warned that he would "close the Southern Border entirely" if Democrats do not agree to provide money to "finish" building a wall on the Mexican border.

"We will be forced to close the Southern Border entirely if the Obstructionist Democrats do not give us the money to finish the Wall & also change the ridiculous immigration laws that our Country is saddled with," the president said in an early-morning tweet.

The federal government entered a partial government shutdown at 12:01 a.m. Saturday over Trump's demand for $5 billion in funding for his long-desired border wall.

The House last week passed a bill providing $5.7 billion in border security and wall funding and $8.7 billion in disaster relief. But that bill is considered dead on arrival in the Senate.

Democrats will take over the House on Jan. 3 and are expected to quickly pass legislation to reopen the government.

But Trump has pledged he will not sign any government spending measure without sufficient border security funding.