«His only significant endorsement», came a few days into the campaign! (nystateofpolitics.com)
Really in the end that's about as significant an endorsement I could offer for something like this. (meeplelikeus.co.uk)
One of the most significant endorsements of String Theory Schools came when the network was engaged by Philadelphia Public Schools to implement a comprehensive school improvement plan at one of the district's underperforming school sites. (edutopia.org)