The Guardian reported Monday on a new study that says there is no evidence that marijuana legalization in the U.S. has led to a spike in use among teenagers. Some opponents of legalization for medicinal and/or recreational use worry about the effect less restrictive laws could have on teenagers and young adults, suggesting that greater permissiveness would lead to an increase in use.

The Guardian reports:

Donald Trump announced Tuesday his intentions to run for president in 2016. While many treat Trump's candidacy as a joke, he insists that he is the real deal.

"Our country needs a truly great leader, and we need a truly great leader now," Trump said during his announcement speech. "We need somebody that can take the brand of the United States and make it great again."

Historically, when an election has a wide-open field of candidates, both inside and outside of the two-party system, it's a symptom of America facing a major crossroads.

Sometimes it's a party ideological battle, like in our third presidential election of 1796 -- where the Federalists and Democratic-Republicans struggled with the new identity of the nation they helped create.

Back in May, Bernie Sanders started his 2016 presidential campaign with a pledge not to run personal attack ads. On Friday, he reiterated his campaign philosophy during an interview with Andrea Mitchell, saying he won't use personal attacks in an attempt to win the presidency:

Louisiana Governor Bobby Jindal, a Republican serving in that office since 2008, is expected to announce his presidential campaign on June 24.

On Monday, Jeb Bush launched his presidential campaign, ending months of "speculation" and his unofficial candidacy. Instead of jumping into the race immediately, Bush took his time to build his campaign and fundraising infrastructure under the radar.

On Flag Day, my wife and I went to a great concert - Gary Sinise and The Lieutenant Dan Band. The concert was hosted by The Hotel del Coronado, and the stage was literally on the beach. Food, drink, our toes in the sand, a suntan, great fun, and excellent music. Genres including Country, disco, Rock, Pop, Swing, and more -- ranging from the 40s to present day. And yes, I could not live with myself if I capitalized "disco."

We were both extremely entertained, and if you ever have the opportunity to see the band perform, I highly recommend you avail yourself and go.

likely to be Bush v. Clinton again. Jeb Bush and Hillary Clinton have been rumored to be the nominees for months, nay years, prior to their official announcements.

June 15, 2015 marks exactly 800 years since the sealing of the Magna Carta by King John, in an English meadow called Runnymede.

The Magna Carta is widely regarded as the document that marked the beginning of the Anglo tradition of constitutional liberty, which would eventually lead to the writing of the U.S. Declaration of Independence and the U.S. Constitution.

The writers of the U.S. Constitution wished to preserve the natural rights they already held, including those truly fundamental rights that were first provided by the Magna Carta.

Although the last Congress was the least productive Congress in recent history, this new Congress isn't shaping up much better. Previously the domain of many Republicans, some Democrats have now adopted the mantle of "all-or-nothing" political brinksmanship, employing the same obstructionist methods that drove a government shutdown and a complete collapse in American trust in government.