Reports say her stance causing problems

Theresa May will not guarantee the rights of European Union citizens living in the UK after Brexit and that's causing friction, according to a report.

Brexit minister David Davis told sources who spoke to Bloomberg that her reluctance to make the pledge was souring his meetings with EU officials.

May, however, wants a reciprocal pledge from the EU before she agrees.

The rift between May and her negotiator (and this leak) will improve the resolve of European Union negotiators to demand those rights without giving concessions. It's a sign that the EU side feels momentum while May is struggling to hold a united front after last month's election debacle.

This particular rift goes back to the first days after the referendum. At the time, David Cameron wanted to promise to protect the rights of EU citizens already in the UK but May blocked it.