The fate of the Iran deal was essentially decided on Tuesday after a handful of Senate Democrats committed their support, but that isn't stopping presidential hopefuls from descending on the nation's capital on Wednesday to squeeze whatever is left of the moment.

Democratic candidate and former Secretary of State Hillary Clinton is set to offer her argument in favor of the deal with a speech at the Brookings Institution near Dupont Circle. Across town on Capitol Hill, Republican candidates Donald Trump, Ted Cruz, and Jim Gilmore are scheduled to rally opponents of the deal.

It's one last chance for both sides of the debate to make their views known before the House holds its vote in the next few days and ahead of the Senate's expected vote next week. The deadline for lawmakers' approval or rejection is Sept. 17.

"It's not enough to just say yes to this deal."

~Former Secretary of State Hillary Clinton