U.S. Sen. Elizabeth Warren, D-Mass., hired a veteran Democratic political organizer to lead her 2020 presidential campaign in Michigan, a key battleground state.

Mike McCollum, executive director for the Michigan state House Democratic caucus, told MLive he will be transitioning into the new role within the next few weeks. He is among the first state directors hired in Michigan by Democrats seeking their party’s nomination to take on President Donald Trump, who narrowly won the state in 2016.

McCollum previously served as regional organizing director for Hillary Clinton’s 2016 presidential campaign in North Carolina and South Carolina. He played a similar role in former President Barack Obama’s 2012 reelection campaign in Missouri and also directed field operations for the Democratic Party in West Virginia and Flordia.

Democrats are targeting Michigan voters after the party suffered a disappointing loss to Trump in 2016. The Michigan Democratic Party expects the president will have a tougher time repeating his success if it can boost turnout and build on gains made in the 2018 midterm elections.

Warren made several campaign stops in Michigan so far. In the last month, she gave remarks at the United Food and Commercial Workers International Union and visited union members on strike at a General Motors assembly plant in Detroit.

Warren unveiled her $2 trillion plan to build a clean energy industry and economic policies that put American workers first during a June town hall in Detroit. Warren said Detroit’s manufacturing base would provide the manpower needed to build new green technology.

The progressive Massachusetts senator is surging in polls of voters in early primary states recently, overtaking U.S. Sen. Bernie Sanders, I-Vt., for second place. Both candidates are running on promises to fight rampant corruption that has benefitted the political elite and the wealthiest Americans.

“We’ve got a big structural problem in this country,” Warren said at the Detroit union event. “We’ve got a government that works great, fabulously, for the wealthy and the well connected, it works great for giant corporations. It’s just not working for much of anyone else. When you see a government that works for those with money and doesn’t work for anyone else, that is corruption, pure and simple.”

U.S. House Minority Leader Kevin McCarthy told Michigan Republicans at their annual leadership on Mackinac Island Warren will likely be the Democratic Party’s choice to take on Trump in 2020.