WATCH: Day 5 of President Trump’s Impeachment Trial

WASHINGTON (AP) -- The impeachment trial of President Donald Trump is continuing Saturday in the US Senate.

WATCH:

President Donald Trump's lawyers have opened their impeachment trial defense by asserting that he “did absolutely nothing wrong" when he asked Ukraine to investigate a political rival, Joe Biden.

They accused Democratic prosecutors of omitting key evidence when they presented their case. The president's lawyers are pushing the Republican-led chamber for his impeachment acquittal on charges he abused his power and obstructed Congress.

Trump's legal team plans an aggressive defense that will assert an expansive view of presidential powers and portray him as besieged by opponents determined to undo the results of the 2016 election and to ensure his defeat this November.