Several House Democrats in battleground districts complained Thursday that a political stunt by Republicans intended to warn them they would not be in office long because of impeachment instead ended up wasting the time of Capitol Police after aides complained of receiving suspicious packages.

The National Republican Congressional Committee sent packing boxes to the Capitol Hill offices of the Democrats, most of whom flipped Republican districts in 2018 and are expected to have competitive campaigns to keep them next year.

A package addressed to Virginia Rep. Jennifer Wexton from the NRCC said “Get Packing!” Other recipients included Reps. Abigail Spanberger of Virginia and Conor Lamb of Pennsylvania.

Some congressional staffers, despite seeing they were from the NRCC, were still wary of the packages and contacted police, as they are trained to do with suspicious packages.

The NRCC, responding to a Huffington Post reporter’s tweet of an NRCC package at Lamb’s office, tweeted: “We know Democrats love investigations but why are they looking a gift horse in the mouth? These boxes will be useful next November!”