Colorado’s Democratic U.S senator, Michael Bennet of Denver, introduced legislation this week to shield farmworkers from deportations, while putting them on a path to citizenship.

“Colorado’s $40 billion agriculture economy relies on an experienced workforce,” Bennet said in a statement. “The failure to fix our broken immigration system has had real economic consequences for our farmers and ranchers. This bill serves as a necessary step until we can enact a long-term solution by passing comprehensive immigration reform.”

Under the act, farmworkers who have worked in agriculture for at least 100 days in each of the past two years could get a “blue card.” Those maintaining a blue card for three or five years, depending on the total hours they worked, would be eligible to adjust to a green card that allows legal residency.

Bennet was a member of the bipartisan Gang of Eight in 2013 that passed comprehensive immigration reform out of the Senate, then watched it wither on the vine in the Republican-led House.

His Agricultural Worker Program Act has virtually no chance of becoming law, however, with President Trump in the White House and his fellow Republicans in charge of the House and Senate.

The U.S. Department of Agriculture estimates that almost half of America’s 1.1 million farmworkers are undocumented.

Democrats say Trump’s pledge on massive deportations could devastate the U.S. agriculture industry.

Bennet introduced the bill with Democratic Sens. Dianne Feinstein of California, Patrick Leahy of Vermont, Mazie Hirono of Hawaii and Kamala Harris of California.

Bennet’s office provided a list of organization’s supporting the bill.