Former President Donald Trump and his two adult sons have agreed to sit for depositions in May and June as part of a class-action lawsuit alleging they collaborated with a fraudulent marketing company. The former President agreed to be deposed on June 16 while Eric Trump will sit for questioning on May 12, and Donald Trump Jr. on May 10, according to the letter filed with the court. The letter had not proposed a date for Ivanka Trump’s deposition. The lawsuit, which was filed in 2018, alleges that in exchange for “secret” payments, Trump and three of his adult children used his reality TV show…