2008 District of Columbia Republican primary took place on February 12 , 2008 . Virginia and Maryland both held primaries on the same day , so the day 's elections were collectively called " the Potomac primary " . John McCain decisively won the primary , securing the votes of all 16 DC delegates to the 2008 Republican National Convention
2008 Republican National Convention
2008 Republican National Convention
2008 District of Columbia Republican primary