Debut edition!  MOULTON holds out for Biden — WARREN mum on second term — TOM BRADY's new ad  —  Welcome to the inaugural edition of POLITICO Massachusetts Playbook, where we round up what you need to know about politics and policy in the Bay State and deliver it straight to your inbox every morning.

Joe Biden Is Leaning Toward a 2016 Run  —  Vice President Joe Biden is increasingly leaning toward entering the 2016 race, if it is still possible he can knit together a competitive campaign at this late date, people familiar with the matter said.

Can the Republican Party Survive Trump?  —  What is happening to the Republican Party?  I put that question to Lindsey Graham, the senator from South Carolina and basement-dwelling presidential candidate, who was getting ready to hold a campaign event in Hooksett, New Hampshire.

The Fed looks set to make a dangerous mistake  —  Raising rates this year will threaten all of the central bank's major objectives  —  Will the Federal Reserve's September meeting see US interest rates go up for the first time since 2006?  Officials have held out the prospect that it might …

Louisiana trooper dies after being shot, taunted  —  A Louisiana state trooper died Monday after authorities say he was shot in the head and then taunted when he stopped to provide aid to a man whose truck was stuck in a ditch.  —  Col. Mike Edmonson, head of the State Police …

Tracy Morgan Marries Megan Wollover - See the Beautiful Couple!  —  Tracy Morgan is a married man!  —  Fourteen months after a horrific highway crash left him fighting for his life, the comedian wed his long-time fiancée Megan Wollover in an intimate and moving ceremony Sunday night, Morgan's rep tells PEOPLE exclusively.

A Moveable Glut  —  What caused Friday's stock plunge?  What does it mean for the future?  Nobody knows, and not much.  —  Attempts to explain daily stock movements are usually foolish: a real-time survey of the 1987 stock crash found no evidence for any of the rationalizations economists …

Elizabeth Warren refuses to commit to 2018 Senate run  —  It's “too early” to commit to another term in the Senate, Massachusetts Sen. Elizabeth Warren told a Boston television station in an interview aired Sunday.  —  Asked by WBZ-TV's Jon Keller whether she would promise to seeking another term …

Dow futures plummet 400 points as Wall Street preps for steep selloff  —  U.S. stock futures pointed to a sharply lower open Monday after a selloff on Friday that dragged major indexes to four-year lows.  —  U.S. stock index futures screamed lower on Monday, with Dow futures tumbling as much as 400 points …

Why salad is so overrated  —  As the world population grows, we have a pressing need to eat better and farm better, and those of us trying to figure out how to do those things have pointed at lots of different foods as problematic.  Almonds, for their water use.  Corn, for the monoculture.

The single most important piece of advice during a stock market crash: don't sell  —  Most people on most days don't pay too much attention to the stock market or spend much time thinking about it.  One big exception is on days when the market crashes dramatically.

Meet the Press Transcript - August 23, 2015  —  CHUCK TODD:  —  This Sunday, two huge stories upending the campaign.  For the Republicans, accepting  —  the fact that Donald Trump is here to stay.  —  DONALD TRUMP:  —  Let's assume that somebody else becomes president.  Wouldn't that be horrible?

Tech oligarchs tightening their grip on Democrats  —  ILLUSTRATION BY CHRIS MORRIS, CONTRIBUTING ARTIST  —  The current state of the Republican Party may seem like a demolition derby, but there's an equally fascinating, if less well-understood, conflict within the Democratic Party.