Democratic voters have out-registered Republicans by a nearly 7-to-1 margin since January.

State totals show Democrats gained a net of 106,508 voters from January through May, compared with 16,686 for the GOP -- a shift that could muddle any McCain campaign math that banks on a Florida win to gain the White House.

New Democratic registration outnumbered Republicans in six Central Florida counties -- even heavily Republican Seminole County.

"It's a clear sign that Democrats are re-surging in Florida," said political scientist Aubrey Jewett with the University of Central Florida. "I think the numbers certainly should worry the McCain campaign."  (Link)

In Nevada:

Nevada is also trending toward the Democrats. At this point in the 2004 election, Republicans had a narrow edge in party registration, but the latest figures show the Democrats with a 55,000-voter advantage. That's significant considering Bush won Nevada by only 21,000 votes in 2000 and 2004.  (Link)

Senator McCain is putting a lot of eggs in the Florida basket and a loss there would be very damaging.  A loss in Nevada, bordering McCain's home state Arizona, would be an embarrassing blow to his campaign.