Did you go and read what was in the link? That can explain it better than I can. Below is an excerpt (maybe I worded it bad in the op)
The House is about to vote on a Continuing Resolution bill to fund the government, which will likely expire in December.
At that point, Congress will be in a lame duck session, and will try to pass a funding bill for fiscal year 2023 – BEFORE the new House majority takes hold.
Hidden inside that funding bill for 2023 are TEN gun control provisions – including budget hikes for the ATF!
That’s why GOA needs your help telling Congress not to let the Continuing Resolution expire before the next House majority takes hold.