Dewhurst, Cruz battle to the end.
With Democrats likely out of Texas’ U.S. Senate race come November, that makes your vote in this month's runoff between Lt. Gov. David Dewhurst and former solicitor general Ted Cruz even more important.
However, Harvey Kronberg at the Quorum Report says just over 3% of the state's entire population may decide who replaces Sen. Kay Bailey Hutchison.

"Most Texans don't understand this for all practical purposes is the election to pick the United States senator, they think its a little inner party fight," says Kronberg. "An election in the middle of the summer that most people don't know about and don't understand the consequence of is going to pick who is going to represent us for the next six years."
Harris County GOP Chairman Jared Woodfill says with just one million Texans expected to vote in the July 31 runoff – 80 to 100,000 here in Harris County -- each campaign is in overdrive.
"It’s really a function of who has the most effective get-out-the-vote machine," says Woodfill. "They all know who is likely to turn back out, and the question becomes who can get their voters to the polls."
Insiders say the runoff favors Cruz due to his tea party following, though Dewhurst has raised more cash and is still considered a favorite in Austin.