Senate rabble-rousers are gaining power

Hardline conservatives are gaining power in the Senate atop key committees. Why it matters: The senators known for rankling GOP leadership now have gavels that let them hold hearings, advance legislation and even issue subpoenas. Driving the news: Sen. Ron Johnson (R-Wis.) will be the new chair of the Budget Committee, Senate Republicans agreed in their closed-door lunch Tuesday. The committee, which has a key role in reconciliation, had been chaired by the late Sen. Lindsey Graham…