WASHINGTON (CNN) - The U.S. House of Representatives is scheduled to vote Friday on a resolution that supports "all Iranians who embrace the values of freedom, human rights, civil liberties and the rule of law."
The resolution also "condemns the ongoing violence against demonstrators."
The supporters include Foreign Affairs Chairman Howard Berman, a California Democrat, and Republicans Mike Pence and House Minority Whip Eric Cantor.
UPDATE BELOW: Sen. John McCain has introduced a similar resolution in the Senate.
The U.S. government is in a precarious position regarding how to respond to the massive rallies in Tehran opposing the results of last week's presidential election which showed a victory for incumbent hardline President Mahmoud Ahmadinejad.
Supporters of Ahmadinejad's main rival, Mir Hossein Moussavi, have taken to the streets this week calling for a new election and protesting the Iranian government's crackdown on the protests, which killed at least eight people.
President Barack Obama has said he is "deeply troubled" by the violent protests but he avoided siding with Ahmadinejad's opponents, telling reporters that "It is up to Iranians to make decisions about who Iran's leaders will be."
"It's not productive, given the history of U.S.-Iranian relations, to be seen as meddling, the U.S. president meddling in Iranian elections," Obama said.
The resolution that U.S. lawmakers are expected to vote on has been tweaked from its initial version, according to The Washington Independent which has posted copies of both versions of the bill. The blog reported that Berman changed the text of the initial version, submitted by Pence, which mentioned Iran's June 12 presidential election. The initial draft resolution did not refer to it as an election, but a "process of selecting Iran's next political leader," the blog reported.
The amended bill that is expected to be voted on states that the House of Representatives:
(1) expresses its support for all Iranian citizens who embrace the values of freedom, human rights, civil liberties, and rule of law;
(2) condemns the ongoing violence against demonstrators by the Government of Iran and pro-government militias, as well as the ongoing government suppression of independent electronic communication through interference with the Internet and cellphones; and
(3) affirms the universality of individual rights and the importance of democratic and fair elections.
On Thursday, Cantor joined critics of the White House's response to Iran's disputed presidential election, saying the United States has a "moral responsibility" to condemn attacks on protesters.
"The administration's position that what's going on in Iran is a 'vigorous debate' is absurd," he said.
"People are being brutalized and murdered by the regime in Tehran. We have no idea exactly how many have died or have been seriously injured, since the regime has restricted journalists. In no way do these actions constitute a 'vigorous debate.'"
The congressman from Virginia, the No. 2 Republican in the House, added that "America has a moral responsibility to stand up for these brave people, to defend human rights, and to condemn the violence and abuses by the regime in Tehran."
UPDATE: A similar resolution was introduced in the Senate Friday by Republican Sen. John McCain, who has been outspoken in his criticism of President Barack Obama's response to this week's massive rallies in Iran against the results of last week's presidential election.
The Arizona senator introduced a resolution on the Senate floor Friday morning that he said would be "an expression of support by the government and the people of the United States of America" for those protesting the results of the June 12 election.
"It is unfortunate in a way that this resolution is required since the administration does not want to - quote - meddle and has refused, the president has refused to speak out in support of these brave Iranian citizens, most of them young, who are risking their very lives to protest what was clearly an unfair and corrupt election," McCain told his fellow senators.
- CNN's Paul Steinhauser, Deirdre Walsh, Peter Hamby and Dan Lothian contributed to this report.