A shaded stretch of Austin's most heavily traveled trail is about to become a construction site for up to eight years. But with days to go before equipment is moved beneath I-35, details of a yearslong detour for the Ann and Roy Butler Hike and Bike Trail remain up in the air.

The 10-mile-long Butler Trail, used by an estimated 5 million people per year, will continue to run beneath the interstate while the Texas Department of Transportation tears down and rebuilds the I-35 bridges that cross Lady Bird Lake.

But the path will be reconfigured until construction is scheduled to end in 2033. It's unclear how the trail will navigate the worksite and heavy equipment under the highway or how wide it will be.

During more complex phases of demolition and building, the popular pathway could be completely closed at I-35 for up to five days at a time.

U.S. Sen. John Cornyn said the FBI has agreed to assist in locating dozens of Democratic Texas lawmakers who recently left the state to block the passage of a Republican-backed redistricting plan.

In a Thursday morning statement, Cornyn said FBI Director Kash Patel approved his request to have federal agents assist in locating "runaway Texas House Democrats."

"I thank President Trump and Director Patel for supporting and swiftly acting on my call for the federal government to hold these supposed lawmakers accountable," Cornyn said. "We cannot allow these rogue legislators to avoid their constitutional responsibilities."

It remains unclear how the FBI's involvement might affect the ongoing quorum break.

Texas Republicans' plan to carve out five new, potentially GOP-leaning congressional districts threatens "millions of Texans' voting rights," warns Democratic U.S. Rep. Greg Casar.

Key quote: "By merging my district, here in the Austin area, with an adjoining district, Trump and Texas Republicans are trying to silence the voices of my constituents and get folks like me out of Congress," Casar told Morning Edition.

Casar represents a "heavily Latino and heavily working-class" district. He said the plan is a violation of the Voting Rights Act and a strategy to weaken the power of voters of color.

"If Trump is able to do that here in Austin, it's a threat all across America," he added.

Read or listen to the interview here.