Portrait of former Speaker Boehner unveiled

"It was a chance for me to learn from people that I admired," Boehner said, during a ceremony with family and former colleagues.

Boehner's tenure as speaker was marked by fractious divisions among competing groups within the Republican Party.

Paul Ryan reluctantly took over as speaker in 2015 following the resignation of John Boehner, who had held the post since early 2011 after Republicans won control of the chamber from Democrats.

The unveiling ceremony of his official portrait happened as lawmakers heard from witnesses in the Democrats' impeachment investigation into U.S. President Donald Trump.