WASHINGTON--President Barack Obama's campaign is already raising money off of Thursday's anticipated Supreme Court ruling on his signature Affordable Care Act--even before the justices hand down their opinion.

Obama campaign manager Jim Messina writes in an e-mail appeal,"We don't know what will happen this morning.But no matter what, today is an important day to have Barack Obama's back. If you're with him, donate now -- before this week's critical fundraising deadline."

June 30 marks the end of the second fund-raising quarter of the year.