> Congress can regulate sports gambling directly, but if it elects not to do so, each State is free to act on its own. Our job is to interpret the law Congress has enacted and decide whether it is consistent with the Constitution. PASPA is not. PASPA “regulate[s] state governments’ regulation” of their citizens.... The Constitution gives Congress no such power.
https://www.supremecourt.gov/opinions/17pdf/16-476_dbfi.pdf
I don't quite understand what they're saying here...I guess the idea is that Congress can regulate gambling -- assuming some constitutional justification like the commerce clause -- but they can't restrict what laws states pass? (Of course, per drinking ages, they can tax states citizens and then release that tax money back to the states conditional on state s enacting certain laws.)
Here is extensive coverage on the excellent SCOTUSblog
http://www.scotusblog.com/case-files/cases/murphy-v-national...
Other HN submission (Bloomberg article):