Senate Republicans Scramble to Find Revenue for Tax Bill With Vote Expected Friday<br />Still, “I am not committed to vote for this bill because who knows what is going to happen on the Senate floor.”<br />On the corporate tax rate:<br />Ms. Collins said she was open to nudging the corporate tax rate above the 20 percent currently envisioned in the Senate bill.<br />The Joint Committee on Taxation said Wednesday afternoon<br />that the Senate tax bill would add $1 trillion to federal budget deficits over the next decade, even after accounting for additional economic growth, a major blow to Republicans’ contention that the $1.4 trillion tax overhaul would pay for itself through growth.<br />“Business tax relief is central to the goals of creating jobs and promoting economic growth,” the groups wrote, “and we are concerned<br />that any effort to hold the corporate tax rate above 20 percent will substantially limit our ability to achieve those goals and expand opportunities for all Americans.”<br />Mr. Brady, Republican of Texas and the chairman of the Ways<br />and Means Committee, said he did not believe there was any willingness on the House side to increase the corporate rate above 20 percent.<br />• Earlier in the day, Senator John McCain of Arizona, who had been undecided about the bill, said he would vote yes,<br />but Senator Susan Collins of Maine said she remained undecided.