ALEC BALDWIN on a slippery slope as bad Karma kicks in!

WITH his dream of a po­litical career ruined by his latest tirade, hothead Alec Baldwin has been down in the dumps, pals say.

The Emmy-winning actor – new dad to a baby girl with second wife Hilaria Thomas – is a “shell of him­self ” after the ugly outburst cost him his cable TV talk show, said a friend.

“Alec looks like he’s aged five years in the past month,” the friend told The ENQUIRER.

“He’s dour and argumentative with his own family. They worry he’s slipping into a full-blown bout of depression.

“With his new baby, these should be the happiest times of Alec’s life. Instead, he keeps saying, ‘I’ve really done it this time.’ ”

The “30 Rock” star, 55, landed in hot water repeatedly in 2013 – hurling racial slurs at one photographer, which Baldwin denied, throwing gay insults at a British journalist and tussling with yet another photographer in August shortly after daugh­ter Carmen’s birth.

He hit rock bottom in November when he spat derogatory gay com­ments at a photographer. The fallout was so brutal that MSNBC yanked his show off the air after just five broadcasts.

Baldwin had hoped to use the show as a platform to run for New York City mayor, but that’s just a pipe dream now, the friend added.

“Political opponents would have a field day tearing him apart,” said the source.

“Alec is filled with remorse over his public behavior, and he’s on a downward slide. He realizes he’s done some things that no apologies will ever fix.”