But governing has proved a challenge, on one issue after another, and he has wielded power with a light hand.
But as I reported earlier in the week, the summit's Arctic location meant that the ministers present, including Britain's Alistair Darling, the US treasury minister Timothy Geithner and France's Christine Lagarde, faced a tricky diplomatic challenge on issue of seal hunting, which would be somewhat peripheral to their portfolios in other circumstances.
And so, one thing that may be driving this is a desire among many rank and file Dems to see Clinton challenged on issues important to them.
The investment is part of a campaign by Google to win hearts and minds across Europe as it confronts legal, regulatory and political challenges on issues including privacy, copyright disputes, antitrust actions and taxation.
Airtel is under pressure with a fresh wave of competition and regulatory challenges on issues like spectrum allocation.
Justin Trudeau, who was sworn in as Canada's 23rd prime minister Wednesday, faces immediate challenges on issues including climate change, taxes, refugees and the fight against Islamic State militants.
At the same time, the need for investment has never been greater, since we are facing serious challenges on issues like climate, infrastructure, water, the digital economy and human capital.
He is the author of the new book "Failure to Adjust: How Americans Got Left Behind in the Global Economy," which focuses on the federal government's failure to respond effectively to competitive challenges on issues such as trade, currency, worker retraining programs, education, infrastructure and support for innovation.
Human rights lawyers are proving to be a major headache for the new administration of President Barack Obama by stepping up their court challenges on issues of prisoner abuse to test the reality of the president's pledge to create a "an unprecedented level of openness" in government.
We certainly have an enormous challenge ahead on issues of youth, HIV and social protection, including issues like child trafficking".
He got annoyed with me for challenging him on issues like the freedom of the press.
