The same flaw is how McCain was able to make a race out of the Republican primaries in 2000.
[link|http://clubs.calvin.edu/chimes/000225/nation_02.html|McCain wins Michigan, ensures long race]
Forty-eight percent of voters in the primary were affiliated with the Republican Party, with Democratic voters making up 17 percent and independent voters making up 35 percent. Bush had 66 percent of the Republican voters in his camp, according to exit polls, with McCain gaining 29 percent from Republicans.
Regards,
John