WASHINGTON--Mitt Romney's campaign said the Supreme Court decision to uphold the Obama health care law--which Romney has vowed to repeal and replace results in $4.6 million raised in 24 hours from more than 47,000 donations.

In another measurement, Facebook participation, Romney soared in the last day, according to the campaign.

New Users last day

Romney, 28,000
Obama, 9,000

Engagements (likes, comments, shares)
Romney, 493,400
Obama, 464,000

% Of Users Engaged
Romney, 23 %
Obamam 1.7 %