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"Mitt Romney may very well mathematically seal the deal on the Republican presidential nomination Tuesday evening. The state offers him enough delegates to breach the threshold of 1,144, considered the \"magic number\" needed to firm up the nomination.\nWith all of his rivals either out of the race or not campaigning in the state, it looks as if Romney will indeed pass that mark in Texas. However, Texas Representative Ron Paul remains on the ballot and has a strong following in his home state, potentially creating a minor roadblock for Romney's eventual nomination.\nMeanwhile, a separate contest will determine the Republican candidate for an upcoming Senate race. The two major contenders are David Dewhurst, Texas' lieutenant governor and Ted Cruz, former solicitor general. If no candidate wins Tuesday's primary with a majority, it will go to a runoff election between the pair with the most votes.\nPresident Obama is also facing a primary challenge from multiple candidates, including a Tennessee lawyer who got 42% of the vote in the Arkansas primary \u2014 but it's not likely he'll beat Obama in the Lone Star state.\nThroughout the night, politicians, journalists and voters will use social media to rally support, tell the story of the Texas primary and discuss the night\u2019s events. Follow along as Mashable collects the best examples of social media use throughout primary night in Texas:\n\n[View the story \"Follow the Texas Primary on Social Media\" on Storify]\nThumbnail image courtesy of iStockphoto, Henrick5000"^^<http://www.w3.org/2001/XMLSchema#string>
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