Joins us live and the latest from g7 summit with jon karl and our powerhouse roundtable with Chris Christie and rahm emanuel. And one year after john mccains death. Our country is not well right now. Cindy mccains new mission. Announcer from abc news, its this week. Here now, chief anchor george stephanopoulos. Good morning. Welcome to this week. I alone can fix it, that signature line from 2016 pretty much sums up President Trumps approach to the presidency and this week he pushed it about as far as it can. With a dizzying series of impulsive moves this week, from greenland, tax cuts on and off the table, back on again, a tax on china and the fed. That sent the stock market into a tailspin and threatened the Strong Economy thats been his best selling point for reelection and as we come on the air this morning, a new political threat, a potential challenge from one of his own. Conservative firebrand joe walsh, a Tea Party Congressman now a talk radio host and no stranger to controversy