A bipartisan group of senators has reached a deal to rewrite the nation’s sentencing and prison laws for the first time in a generation, giving judges more latitude to sidestep mandatory minimum sentences and easing drug sentences that have incarcerated African-Americans at much higher rates than white offenders.

The lawmakers believe they can get the measure to President Trump during the final weeks of the year if the president embraces it.

The compromise would eliminate the so-called stacking regulation that makes it a federal crime to possess a firearm while committing another crime, like a drug offense; expand the “drug safety valve” allowing judges to sidestep mandatory minimums for nonviolent drug offenders; and shorten mandatory minimum sentences for nonviolent drug offenders, according to draft text of the bill obtained by The New York Times.