Dewhurst has held the powerful lieutenant governorship since 2003 but is locked in a fierce battle for the Republican nomination to replace retiring U.S. Sen. Kay Bailey Hutchison with former state Solicitor General Ted Cruz - a tea party favorite.
The pair face a July 31 runoff election after neither won a majority of the votes cast during last month's primary, though Dewhurst came close.
Dewhurst declared Saturday that "Washington is a disaster" and said he'd make the federal government more like Texas.
His speech to the convention in Fort Worth came shortly after Cruz's, and struck a more-subdued tone. But Dewhurst also largely avoided boos from tea party supporters.
To comment, the following rules must be followed:
Comments may be monitored for inappropriate content, but the station is under no legal obligation to do so.
If you believe a comment violates the above rules, please use the Flagging Tool to alert a Moderator.
Flagging does not guarantee removal.
Multiple violations may result in account suspension.
Decisions to suspend or unsuspend accounts are made by Station Moderators.
Questions may be sent to email@example.com. Please provide detailed information.