ASSOCIATED PRESS Massachusetts Sen. Elizabeth Warren wouldn't say during a forum Saturday if she believed incarcerated people should be allowed to vote in American elections.

The American Civil Liberties Union is pushing 2020 presidential candidates to commit to cutting the federal prison population in half and to allow incarcerated people to vote, part of a $30 million push to shape elections and advance civil libertarian ideas over the next two years.

The ACLU has used its rapidly expanding membership and budget during the Trump era to get increasingly involved in electoral politics, spending heavily on referendums on civil liberties issues and occasionally wading into Senate, gubernatorial and district attorney races.

Its plan for the 2020 election, which it will unveil at a press conference on Sunday afternoon in New Hampshire, involves marshaling its thousands of members in the early primary states of Iowa, New Hampshire, Nevada and South Carolina to pressure candidates on a host of potentially politically thorny questions about civil liberties at town halls and candidate forums.

“If we can get a big number of candidates to commit in a clear and unequivocal way to certain civil rights and civil liberties positions, that would be a win,” said Ronald Newman, the group’s interim national political director. (The previous political director, Faiz Shakir, is now Bernie Sanders’ campaign manger.)

The group wants the 2020 candidates to commit to a platform that includes ending “unjust laws that strip citizens of their fundamental right to vote due to criminal convictions” and to allow the incarcerated to vote; working to cut the federal prison population in half; creating a path to citizenship for immigrants without legal status while ending the use of immigration detainers and reducing the use of immigration detention by 75 percent; and lifting the Hyde Amendment, which bars the use of federal funds for abortions except in cases of incest, rape or to protect the life of the mother.

Some of those positions are already widely held among the large field of Democrats running for president: A pathway to citizenship has been part of Democratic proposals on immigration since at least the beginning of this decade, and the 2016 Democratic National Committee platform included a proposal to overturn the Hyde Amendment.

But other proposals ― especially a pledge to reduce the federal prison population by half and to allow the incarcerated to vote ― are likely to meet more resistance. Only two states ― Maine and Vermont ― currently allow people in prison to cast ballots. And Democratic candidates in 2018 who adopted similar positions on reducing the prison population on the state level found themselves the subject of withering attack ads from Republicans.