"endorse the notion of" is correct and usable in written English.
You can use it when you want to express agreement with an idea or concept. Example sentence: I wholeheartedly endorse the notion of using renewable energy sources to reduce our carbon footprint.
Other theorists endorse the notion of association, but hold it to be less important than is a process of inhibition through which errors in learning are eliminated.
There has also been friction over Mr. Netanyahu's refusal so far to endorse the notion of an independent Palestinian state alongside Israel.
Last week, despite trumpeting from host Nicolas Sarkozy, the G20 summit in Cannes notably failed to endorse the notion of an FTT.
Mr. Netanyahu, who took office almost a month ago, has refused to endorse the notion of an independent Palestinian state alongside Israel as a solution for the conflict, as many nations urge.
Republicans have pounced with glee on a 1992 speech that Biden gave in the Senate in which he seemed to endorse the notion of blocking any supreme court nominee put forward in the midst of an election season.
Thus whatever statement or resolution is adopted is not expected to do more at this stage than to endorse the notion of a broad-based coalition, and to express support for Mr. Brahimi's mission.
But Obama also endorsed the notion of giving blanket amnesty to any C.I.A. officers performing authorized work.
Unesco (in their Universal Declaration on the Human Genome and Human Rights) absurdly endorses the notion of the preservation of the human genome as common heritage of humanity.
The irony on Tuesday was that, now that Europeans and United Nations have endorsed the notion of unilateral withdrawals, the withdrawal plan itself is in disarray.
Though, under American pressure, he endorsed the notion of a Palestinian state in 2009, he has presented no plan to bring it into being.
"[The proposal] rightly endorses the notion of technology neutrality but then proposes the exclusion of some energy technologies and explicit preferment of others," the MCA submission said.
