Forty-two of 49 committee members then voted to declare the complaint sufficient in form but insufficient in substance. He also branded Duterte's lenient attitude on the maritime disputes with China as "betrayal public trust" and "culpable violations" of the Constitution.
The complaint, filed in March, alleged that Duterte had adopted a state policy of extrajudicial killings during his war on drugs, leading to the death of more than 8,000 people in the first eight months of his presidency.
President Rodrigo Duterte on Tuesday said he's ready to face any complaint against him in any tribunal.
MANILA, Philippines (AP) Philippine President Rodrigo Duterte acknowledged Tuesday that allegations he induced extrajudicial killings in his war on drugs could be raised to the International Criminal Court after an impeachment case failed in the House of Representatives.
The Justice Committee of the House of Representatives, which is dominated by Duterte allies, declared during the first hearing on the matter that while the complaint was sufficient in form, there was insufficient substance to proceed.
"And what happened shows that congress is unwilling to prosecute the President", Alejano added.
The partylist lawmaker had acknowledged at the hearing that he did not personally witness the killings, but asserted that he had reviewed the reports about the killings and the public pronouncements of the President about his drug campaign.
Presidential Legal Counsel Salvador Panelo said the junking of the complaint was expected because it was built on falsehoods and meant to "besmirch the reputation" of Duterte.
"Now we have no other recourse but to look for other modes on how we could bring out the truth and they won't have any control on the possible outcome", Trillanes, a staunch critic of the President, said.
Duterte said Monday he could not "make any definite promise" about the trip due to his schedule.
Alejano was aware his bid was a long shot but had aimed to embolden the public to speak up over the war on drugs and over Duterte's failure to pressure China to abide by an worldwide arbitration ruling a year ago that declared some of Beijing's activities in the South China Sea illegal.
"What you've heard of read in the newspaper or what was told you, that is hearsay evidence and that will not stand trial", House Majority Leader Rodolfo Fariñas said in a mix of Filipino and English.
Farinas said Alejano may be slapped with perjury as well as ethics case after failing to prove his allegations.
Presidential spokesperson Ernesto Abella said Duterte has not said "yes" to Trump's invitation but likes to accept the gesture.
"The president respects a coequal branch of government and does not interfere in the political exercise", he said, apparently distancing the president from suggestions that he controls the House.