Most of the polls have closed in Texas, where there is a hotly contested Republican primary for U.S. Senate, which could also head to a runoff in late July if no candidate reaches 50 percent tonight.
A small potion of western Texas is in the Mountain Time Zone, and the polls there are still open. Therefore, no result will be called by the media until all polls are closed, even if the early returns were to show an overwhelming immediate result.
