Rames said the Democrats have not yet decided to join the coalition.
The spokesman said the Democrats wanted the Phalang Pracharat to promise that the coalition would implement the Democrats key policies.
He said they wanted Phalang Pracharat to promise to support charter amendments and to implement policies for raising the income of framers.
If the Phalang Pracharat remains silent, the Democrat executives and MPs will hold a meeting on Tuesday to discuss the party’s stand before Parliament is scheduled to hold a vote to select the prime minister on Wednesday, the spokesman added.
Rames said that the Future Forward party has not invited the Democrats to join its coalition.
“We are now waiting only for a response from the Phalang Pracharat,” Rames added.