Canada and Mexico have both said they are not walking away from the North American Free Trade Agreement following hard-hitting proposals by the United States. However, online source Axios points out that folks on Capitol Hill are starting to ask “when” not “if” President Trump will issue a notice to withdraw from NAFTA.

The U.S. hardball approach on dairy and automotive trade, along with the Buy American initiative, and others, has sources close to the negotiation saying “there’s no chance of a compromise solution,” unless U.S. Trade Representative Robert Lighthizer changes tactics.

The White House has not denied that Trump and Lighthizer have discussed the six-month withdrawal notice, but say that doesn’t mean he’s moments away from doing so. Mexico and Canada, meanwhile, are not walking away from the talks, as both sides agree to take part in the negotiations “in good faith,” due to NAFTA’s benefits for both countries.