Sen. Susan Collins announced Wednesday that she would vote to bring debate to close on the financial reform bill.

“The procedure followed on the financial reform bill has afforded Republicans, including myself, the opportunity to debate and to offer amendments to improve this important legislation during the past three weeks,” the Maine Republican said in a statement. “While I am disappointed that many of these amendments have not been adopted, nevertheless the process, by and large, has been fair and open. Therefore, I will cast my vote in favor of cloture today.”

Collins support comes as Democrats scramble to hold their caucus together and move to final passage of the financial reform bill. The Senate is poised to vote at 2 p.m. Wednesday to end debate on the measure, but a last-minute change to the section of the bill dealing with derivatives and an impasse over a handful of other controversial amendments has shaken the resolve of some Democrats, who are withholding their support.