Starting over Fourth of July weekend, the political network funded by billionaire industrialist Charles Koch is planning to release attack ads targeting seven senators who voted against President Donald Trump's $15.4 billion spending cuts package

A new investigation exposes how one of the top scientists involved in denying climate change has failed to disclose his extensive funding from the fossil fuel industry. Dr. Wei-Hock Soon of the Harvard-Smithsonian Center for Astrophysics has downplayed global warming and rejected human activity as its cause, arguing the sun is more responsible than greenhouse gases from pollution. Climate denialists — including Republican Senator James Inhofe, chair of the Senate Environment and Public Works Committee — frequently cite Soon’s work to reject concrete action.