A majority of the National Assembly voted last week to debate impeachment but the Order, Law and Justice party repealed its support, the Sofia News Agency reported.
That leaves the impeachment bid with apparently insufficient votes to send it to the 12-member Constitutional Court. At least 160 of the assembly's 240 members must support the motion for it to undergo judicial review, the report said.
Parvanov is accused of recording a March 5 meeting with the finance minister without the minister's knowledge and then releasing a transcript of the meeting. Opposition parties allege that was a violation of the constitution.