take a page from

take a leaf out of book

Fig. to behave or to do something in a way that someone else would. When you act like that, you're taking a leaf out of your sister's book, and I don't like it! You had better do it your way. Don't take a leaf out of my book.I don't do it well.

Hillary Clinton's ambitious education plan takes a page from the left wing of her party, but [...]