European and US officials do not expect Turkey's concerns about Finland and Sweden joining NATO to be allayed before this week's NATO summit, US and European officials told CNN.
However, some officials believe that Turkey may see the NATO summit as a place to finally reach agreements that could move the process forward.
But Turkish officials said they see no limited schedule for the talks, and some US and European officials are unsure whether Turkey is ready to reach an agreement in Spain.
White House officials are cautious about whether Biden and Erdogan will meet in Spain on the sidelines of a NATO summit. The two leaders are expected to talk about the accession process at some point, though it may not turn into a formal bilateral meeting, the source said.
US officials are wary of directly involving Biden in discussions, realizing that direct US involvement could raise the stakes and exacerbate Erdogan's demands, including a likely extradition request for U.S.-based cleric Fethullah Gülen, whom Erdogan accuses of orchestrating a 2016 coup attempt. .
Nevertheless, they are confident that the applications of the two countries will eventually be satisfied.