Tensions are flaring at the highest rungs of the Democratic Party over its decision to pull out of the Florida Senate race, with Senate Minority Leader Harry Reid and Florida donors pressing to go all out to unseat Marco Rubio in the final days of the campaign, but New York Sen. Chuck Schumer and the party’s Senate campaign arm arguing it’s not feasible because of budget constraints.

The Democratic Senatorial Campaign Committee — under the direction of Schumer and its chairman, Montana Sen. Jon Tester — has redirected millions of dollars from Florida to North Carolina, Missouri and Indiana. They reason that those states are both much cheaper to advertise in and offer a more promising path to the Senate majority than Florida, where Rubio has long been favored to defeat Democratic Rep. Patrick Murphy.

But Reid and other Democrats believe that defeating Rubio would be the ultimate Election Day trophy for Democrats, given his national stature and the reelection threat he could post to a potential President Hillary Clinton in 2020.