Ted Cruz and Bernie Sanders will debate the Republican tax plan next week in an event hosted by CNN, the network announced Wednesday.

The face-off will pit one of the Senate's most conservative Republicans and an advocate of major tax cuts against one of the most liberal members of the Senate who has long opposed tax cuts for high earners, and has proposed raising taxes to fund larger government projects.

The Oct. 18 debate will center on the tax plan backed by President Trump and congressional GOP leadership, which would lower individual and business tax rates and eliminate the estate tax.

Cruz has called for ensuring that the framework translates into a supply-side tax cut. "We need to embrace unapologetically that we're doing a tax cut," the Texan said last week as he outlined his aims for the eventual legislation at the Capitol.

Sanders, I-Vt., has called the GOP framework "morally repugnant."

Sanders spoke for eight hours on the Senate floor in 2010 in opposition to an extension of some of the Bush tax cuts. That speech became known as the "Filibernie."

CNN also recently hosted a debate between opposing senators, including Sanders, over a GOP healthcare proposal. Sanders caucuses with Democrats, although he is an independent.