Sen. Charles Grassley, R-Iowa, is one of an estimated 30 senators and more than 100 House members who use Twitter, quite a development in an institution where messengers still bow when they enter the Senate chamber.
Sen. Charles Grassley, R-Iowa, is one of an estimated 30 senators and more than 100 House members who use Twitter, quite a development in an institution where messengers still bow when they enter the Senate chamber. Cliff Owen / MCT
Sen. Charles Grassley, R-Iowa, is one of an estimated 30 senators and more than 100 House members who use Twitter, quite a development in an institution where messengers still bow when they enter the Senate chamber. Cliff Owen / MCT