Prime Minister Theresa May received less than glowing praise for her Brexit plan on Wednesday, with top EU official Donald Tusk saying Britain must rework its proposals for Northern Ireland and trade.
Hours before the British prime minister was due to try to sell her plan to the other European Union leaders, summit chairman Tusk repeated criticism of her proposals for future customs arrangements and for the border between the British province of Northern Ireland and EU member Ireland.
May has shown little sign of backing away from her "Chequers" plan, and repeated her aims in a carefully placed article in a German newspaper on the eve of the two-day EU summit in Salzburg, Austria.
But Tusk was clear - her customs proposals and those aimed at preventing a hard border on the island of Ireland would have to be reworked. Earlier, EU negotiator Michel Barnier signaled he was ready to address Britain's border concerns.
"The Brexit negotiations are entering their decisive phase. Various scenarios are still possible today but I'd like to stress that some of Prime Minister May's proposals from Chequers indicated positive evolution in the UK's approach," Tusk told a news conference.
"On other issues, such as the Irish question, or the framework for economic cooperation, the UK's proposals will need to be reworked and further negotiated."