Former Pheu Thai MPs Narisorn Thongthiraj and Udomdej Rattanasatien will be impeached if three-fifths, or 150 of the 250 legislators, vote against them Friday.
If impeached, the two will be banned from politics for life as per the new constitution.
The NLA heard closing statements from the accused and the accuser, the National Anti-Corruption Commission (NACC), Thursday.