Sen. Joe Manchin (D-W.Va.) has yet to announce whether or not he’ll be running for reelection in 2024 and hasn’t ruled out a presidential run either. But Manchin raised more money during the second quarter of this year than the two major GOP candidates vying for his seat, adding to his major cash advantage. The race is one of three 2024 Senate elections deemed a “toss-up” by the Cook Political…