I've read that Republicans now have a two seat majority in the Senate
With or without VP?
Without. Montana was a biggie, hence why Trump campaigned there earlier on to get rid of Tester. Getting that seat back was kind of a big deal. It's a red state, but Missoula and Bozeman have massive (to Montana) liberal people. Most from CA and kids that stay after college in those cities.
Senate races are a different animal. If you just pester/campaign the major cities in your state you can win. The fact Tester lost is amazing.
Is the counting for the House really taking that long?
For example:
https://ig.ft.com/us-elections/2024/results/house/