National Democrats are mulling whether they have cash and time to go all in against GOP-held Senate seats in Texas and Florida with one month out to the election.

With signs that Sen. Jon Tester’s (D-MT) seat is slipping away in a race that could deliver the chamber majority to Republicans, Democrats have only just recently gone on offense with last-minute, modest ad-buys against Sens. Ted Cruz (R-TX) and Rick Scott (R-FL).