Comey already testified before the Senate intelligence committee on June 8, 2017. Once should be enough, but the GOP has a had a long hatred towards Hillary Clinton. They just don’t like smart women. Stop wasting money on another investigation that’s not going to amount to anything. The Mueller investigation has proven that 45 relies on thugs and criminals to do his dirty work. If you want to do something, concentrate on 45s unethical and treasonous actions against the US.