In the wake of the Tuesday mass shooting at an elementary school in Texas, Twitter users went viral by making false claims about two of the state's most prominent politicians: Gov. Greg Abbott and Sen. Ted Cruz, both Republicans. The tweets purported to be written by someone whose nephew was shot in the massacre at Robb Elementary School. The tweets claimed that an Abbott representative knocked on their door, shortly after they returned home from identifying their nephew's body, and that this representative "informed us he's willing to pay us to stand with the Gov and say we don't need...