Trump Says He'd Block John Bolton From Testifying

The transcript discusses the potential testimony of John Bolton at the Senate impeachment trial. President Trump suggested using executive privilege to prevent Bolton from testifying, citing national security concerns. Bolton, a key figure, did not participate in House hearings, but his testimony could address the delayed Ukrainian military aid. The Senate is still deciding on trial rules, with Republicans opposing witness testimonies.

What was the uncertainty expressed by multiple witnesses regarding the Ukrainian military aid?

What are top Senate Republicans pushing for regarding witnesses in the trial?