The poll largely has good news for Democrats in Wisconsin only two years after President Donald Trump narrowly won the state.
The new entity, called Americans for Prosperity Action, is a sister organization of the Koch-backed nonprofit Americans for Prosperity, which describes its mission as fighting for less regulation, lower taxes and "economic prosperity for all."
President Donald Trump heads to Indiana where he will slam Democratic Sen. Joe Donnelly, while Vice President Mike Pence will go to Wisconsin to boost Republican Leah Vukmir and criticize Democratic Sen. Tammy Baldwin.
Americans for Prosperity announced on Wednesday that they will be launching their new efforts against the Democrats running in Wisconsin, Tennessee and Missouri.
Voters in Minnesota will pick nominees for four competitive House races, two of which are perhaps the GOP's best chances to flip Democratic-held seats.
Rep. Francis Rooney, a Republican, just signed on to the FAIR Drug Pricing Act, a bill that requires basic transparency for pharmaceutical companies that drastically spike the price of a drug.
Incumbents seeking re-election in Wisconsin, Michigan and Minnesota hold comfortable edges with a little more than three months before November's midterms, the NBC News/Marist polls found.
A plurality of voters in the key swing states of Michigan, Minnesota and Wisconsin said they would prefer to see Democrats take back control of Congress in the November election, according to a new poll.
The political network funded by billionaire Charles Koch is planning to release attack ads targeting seven senators for voting against President Trump's $15.4 billion spending cuts package.
Senators have asked Carl Icahn and EPA Administrator Scott Pruitt to explain how an Icahn-owned refinery secured a valuable exemption from the nation's biofuels law.
Trump's decision to reconsider joining the TPP opens up another potential line of attack for some Democrats.
Sen. Tammy Baldwin wants two SEC nominees to answer questions about activist investors and buybacks before she agrees to an expedited vote.
Sen. Al Franken plans an announcement Thursday after new allegations and growing calls for his resignation.
Republicans are getting the cold shoulder as they ramp up the pressure on Democrats to support tax reform.
The top U.S. Senate Democrat pledged to try to block the confirmation of President Donald Trump's Supreme Court nominee Neil Gorsuch.
The so-called "golden parachutes" are more common retirement bonuses than most people think, Vox reports.
Donald Trump's pick for secretary of HHS will be in the hot seat when he goes before the Senate on Wednesday.
How can the Trump administration replace Obamacare without falling flat on its face? Tell the states to do it instead, says Vox's Ezra Klein.