Crystal Ball joins Cook in rating TX-21 a tossup. http://centerforpolitics.org/crystalball/articles/house-rating-changes/ #txlege

TX-21 is part of 2011’s GOP gerrymander of Travis County (which split the heavily Democratic county into five parts). About 29% of the voting age pop lives in Travis Co, another 32% in Bexar Co. #txlege

TX-21 also has grown quite a bit since it was drawn in 2011, adding around 150k people. Much of that growth has been in the Austin parts of the district. #txlege

A big driver of TX-21’s competitiveness this year is that it has the fourth highest number of college educated white people among state’s congressional districts - a group in Texas that has moved decisively toward Democrats compared even with 2018. #txlege

TX-21’s electorate also has gotten about 5.7% less white since 2011, though it remains about two-thirds white. #txlege

Fun bonus TX-21 fact: It emerged in the Texas redistricing litigation that one of the changes that then-Congressman Lamar Smith asked for - and got - was for the San Antonio Country Club to be moved into his district. #txlege