Denver, CO, USA. States are increasingly concerned about drugged driving, but many offer avenues to legitimate marijuana use. Here is a primer on the driving high issues.

Twelve years after Colorado legalized the use of marijuana for medicinal purposes, more than 85,000 people have been certified by the state health department to use it.

Washington, DC, USA. The Virginia Senate and the Oregon House each had an equal number of Democrats and Republicans this year, but that's where the similarities ended.

The different results show that tied legislative chambers can head in opposite directions: compromise or contention. Political context can make all the difference in determining which direction a tied chamber goes.

Washington, DC, USA. On a national political scale, severability — the question of whether the health law can stand if the so-called “individual mandate” falls — is the weightier of the two issues the Supreme Court will hear today.

But for states, the health law’s required expansion of Medicaid to some 16 million more people is by far the top issue.

Washington, DC, USA. Today, the Supreme Court will hear two hours of oral argument on the central issue in the case against the Obama administration’s health law — whether the federal government has the constitutional authority to make people either purchase health insurance or pay a fine.

State plaintiffs are arguing the law’s individual mandate is unconstitutional. The Obama administration will say it is legal under the commerce clause of the U.S. Constitution.

Washington, DC, USA. On the first day of argument in the health care case, the Supreme Court justices will consider whether they have jurisdiction to hear a challenge to the law’s individual mandate provision before it goes into effect.

Seen by supporters as the Obama administration’s signal achievement, the Affordable Care Act was challenged the day it was signed, March 23, 2010.