Retail CEOs will descend on Washington on Wednesday to meet with lawmakers and President Trump to talk taxes, including the increasingly-contentious matter of border adjustability.

Chief executives of AutoZone (AZO) , Tractor Supply  (TSCO) , Jo-Ann Fabric, Target (TST) , Best Buy (BBY) , Gap (GPS)  and J.C. Penney (JCP)  will be in attendance, according to people familiar with the matter. Walgreens Boots Alliance (WAG)  will join the group for a meeting at the White House but will not take part in meetings with Congress.

While tax reform is the broad agenda, conversations will hone in on the border adjustment tax, a measure that essentially taxes imports and exempts exports. Retailers have voiced strong opposition to the tax, arguing it would put retail jobs at risk and raise consumer prices.