Quelle surprise! McConnell pledges to sacrifice American economy and blames Democrats for his acts.

I've got the next headline ready -

"Chief arsonist promises that his association will keep burning down buildings because firefighters don't kiss butt well enough"

From The Hill - 

McConnell vows GOP won't help raise debt ceiling in December after Schumer 'tantrum'

Senate GOP Leader Mitch McConnell (Ky.) warned President Biden on Friday that Republicans won't help raise the debt ceiling later this year, and stated that a recent speech by Majority Leader Charles Schumer (D-N.Y) had "poisoned the well."

"Last night, Republicans filled the leadership vacuum that has troubled the Senate since January. I write to inform you that I will not provide such assistance again if your all-Democrat government drifts into another avoidable crisis," McConnell wrote in the letter to Biden. 

Of course, "avoidable crisis" is McConnell-speak for "crisis that we caused, so avoid voting for us".