Complex sentence: Especially considering that the main hook: "'put the brakes' on Barack Obama's presidency" is entirely unsourced or even mentioned in the article, given that both the article and source read: "put the brakes on Obama's legislative platform".
Split into simpler sentences: Especially considering that the main hook: "'put the brakes' on Barack Obama's presidency" is entirely unsourced or even mentioned in the article. Instead, both the article and source read: "put the brakes on Obama's legislative platform".