WASHINGTON, Oct 7 (Reuters) - Steve Scalise, the No. 2 Republican in the U.S. House of Representatives, and Jim Jordan, a leader of the party's conservative wing, are in a two-way race to lead the chamber after the historic ouster of Kevin McCarthy, but neither has the election sewn up. Scalise, a lawmaker from Louisiana, has taken the more traditional route to the top by raising money and building relationships across the party, while Jordan has made his mark as a right-wing firebrand. Jordan is a leading defender of former President Donald Trump, who remains a major figure in the...