Speaking from a White House that already has a huge credibility problem with the public, Meadows' statement capped a 24-hour period that served as a master class in opacity and contradiction that raised major questions about the President's health--and renewed questions about this administration's ability to tell the truth.

1. capped 在这里等于 covered 的意思（占用了）。

2. in opacity and contradiction，是介词短语，不是形容词。表示“在...方面的”，作 class 的定语。

3.  that raised major questions... ，是 a master class 的定语从句。不能说 raised 是定语从句。