Rick Santorum has picked up at least 32 delegates in Saturday's caucuses, and he could get even more if his margin of victory holds up in Kansas.
Mitt Romney has added at least 23 delegates, most of them from winning contests in Guam and the Northern Mariana Islands.
Voters also were caucusing in Wyoming and the Virgin Islands.
Romney leads the overall race for delegates with 441. That includes endorsements from members of the Republican National Committee who automatically attend the nominating convention this summer and can support any candidate they choose.
Santorum has 213 delegates, followed by Newt Gingrich with 107 and Ron Paul with 46.
It will take 1,144 delegates to win the Republican nomination to face President Barack Obama in the fall.
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