Next Tuesday’s Wisconsin presidential primary is a crucial lifeline for Republicans desperate to stop Donald Trump’s march to their party’s nomination. 

One of the most potent outside liberal-oriented political groups announced it would back Hillary Clinton if she chooses to seek the White House in 2016, the latest sign that senior members of President Barack Obama’s team were looking to line up with the former first lady.

Republicans raised and spent money for the presidential race at a frenetic pace in January, according to financial disclosures that also show why Democrats are concerned about the flagging Super PAC that supports President Barack Obama.