"Morning Joe" co-host Joe Scarborough has officially left the Republican Party and registered as an "unaffiliated voter" in his home state of Connecticut.

"@JoeNBC made it official -- he left the Republican Party today," his senior producer, Jesse Rodriguez tweeted Thursday.

The tweet was accompanied by a picture of Scarborough smiling while proudly displaying his voter registration at a town hall event in New Canaan, Conn., where Scarborough is a resident.

Scarborough followed up with a tweet of his own.

"I made it official today and became independent," he wrote, before adding a jab at President Trump. "Here I'm holding Donald Trump's birth certificate, which proves he was born in Nambia."

Scarborough served as a Republican congressman in the late 1990s and has been an outspoken Republican on MSNBC. However, after the 2016 election, he called the GOP "a dying party that I can no longer defend" and said he would become an independent.

Since announcing his departure from his party this summer, he has frequently criticized the party, especially President Trump, on his morning talk show.