The former first lady had finally endorsed her opponent the previous day in a speech to mark the end of her bid to become America's first woman president.
'I am thrilled and honoured to have Senator Clinton's support,' said Mr Obama yesterday.
'But more than that, I honour her today for the valiant and historic campaign she has run.
'She shattered barriers on behalf of my daughters and women everywhere, who now know that there are no limits to their dreams.'
Barack Obama holds an economic discussion at Macomb Community College in Warren, Michigan, last week. He praised Hillary Clinton
Hillary Clinton waves at the National Building Museum in Washington on Saturday. She endorsed Barack Obama during the rally
Mrs Clinton, 60, showed her support for Mr Obama, 46, on Saturday in a speech to reunite the Democrat Party after months of bitter campaigning.
She vowed to work her heart out to help him win November's presidential election against Republican choice John McCain, 71.
But she arrived 45 minutes late to the speech, wore black and did not name her rival until 650 words in.
There were boos from some of her supporters when she urged them to back Mr Obama.
-
Eden Hazard is key to Roman Abramovich’s dreams of fantasy football at Chelsea
-
TV Baftas - in pictures
-
British woman Lindsay Sandiford facing death penalty over Bali drugs haul is mother of violent robber who carried out raids in London
-
Usain Bolt’s quick to tell fans he’ll be lightning fast again
-
News pictures of the day
-
British housewife facing FIRING SQUAD over Bali drugs smuggling charge was 'neighbour from hell'
-
They attacked "like a pack" raining fists on a defenceless legal secretary. Yesterday they walked free from court. No wonder their victim says she has been denied justice.
-
Mayor demands report from Transport for London into Jubilee Line nightmare that left hundreds of commuters trapped for hours underground
-
Locked up and banned: The Tube drunk whose vile racist rant was caught on film (video)
-
Video: Intruder bursts into Leveson Inquiry to brand Tony Blair a war criminal
Drum'n'bass pioneer Goldie creates ‘rose’ portrait of the Queen 
Chelsea close in on £62m swoop for Eden Hazard and Hulk 
Video: South east London factory fire - 'Air raid siren' wakes Greenwich residents 
The London best: Yoga classes 
The O2
Check out the cool stuff happening under our tent such as the hottest gigs, comedy, sport, films, clubs, bars, restaurants and much more.
Can you imagine a career in teaching?
Be inspired to teach - let real teachers show you how rewarding the job can be.
Playing a game-changing role during the Games
Cisco is providing the solutions for London 2012's complex IT needs.
Win a Silverstone track day with Zantac 75
Feel the burn of a different kind - 20 Silverstone motoring experiences to be won
Celebrate with MARTINI®
This weekend toast one royal with another and make your Jubilee sparkle with a MARTINI Royale.
Best of the Baftas
Hazard warning
You big softie
Gay marriage
Promethipedia
Prints charming
Grandpa Bob
The Middletan
Dare to bare
Fashion
