Former President Donald Trump is warning Republicans that efforts to abolish the filibuster in the Senate would cause significant damage to the GOP, following Democratic leaders saying that the 60-vote threshold needs to be eliminated to push their agenda through Congress. “Look, he’s hanging by a thread right now with respect to the filibuster,” Trump said in reference to Senate Minority Leader Mitch McConnell (R-Ky.) and his attempts to push back against Democrats’ attempts. “And if they get the filler, he’s hanging on [Democratic Sen.] Joe Manchin, who always goes with the Democrats. Joe talks, but he ends up going with the Democrats. Now there’s another great senator from the state of Arizona. He’s hanging by a thread and if they get rid of the filibuster, if they knock it out, it will be catastrophic for the Republican Party,” Trump said on podcast “The Truth with Lisa Boothe.” Manchin, considered possibly …