Trump-Xi meeting to end trade war may be pushed back to June, sources say -SCP

The South China Morning Post has said that an April meeting has been described as less likely:

• The two sides could be able to reach an agreement by the middle of the year.
• One stumbling block appears to be the demand from some in the White House for an enforcement mechanism to ensure China lives up to its promises.

More here: Trump-Xi meeting to end trade war may be pushed back to June