Democrats are building a multimillion-dollar machine to focus on winning back state offices and legislatures lost under former President Barack Obama. Some of the Democratic Party's wealthiest backers have joined the effort, according to the Associated Press. Billionaires George Soros, Donald Sussman, and Fred Eychaner have together contributed at least $15 million. The Tea Party wave of 2010 installed six new Republican governors, flipped 21 state legislative chambers, and replaced nearly 700 Democratic state legislators with members of the GOP. The sweep gave Republicans an advantage in state politics and, even more importantly, greater control over the once-a-decade redistricting process...