The U.S. judiciary’s Advisory Committee on Civil Rules will continue to study a proposal to curb judge shopping in single-judge divisions and to examine how federal district courts respond to nonbinding guidance that they randomly assign among all judges in a district any lawsuit where a plaintiff seeks national relief, the panel said Tuesday.

Democratic lawmakers have warned that case assignment procedures in single-judge divisions allow conservative groups challenging the Biden administration’s policies to hand-pick favorable judges to hear their cases.