Restore our Future, the super PAC backing presumptive GOP nominee Mitt Romney, brought in $20 million in June, the group said Monday.

That marks a major jump from last month, when Restore our Future reported bringing in $4.6 million. The spike is not a surprise, however, since the group received a $10 million donation from Sheldon and Miriam Adelson in June.

Also helping the group was the first donation from Foster Friess, a millionaire who was a major backer of the pro-Rick Santorum super PAC. He told CNN he gave a six figure donation to Restore Our Future last month, though he refused to give the exact amount.

Earlier this month, Restore our Future announced they were going up with a large television ad buy during the upcoming Olympics. The buy, which will run July 31 through August 9, is for commercials in 11 states: Colorado, Florida, Iowa, Michigan, Nevada, New Hampshire, North Carolina, Ohio, Pennsylvania, Virginia and Wisconsin.