Watch Melania Trump greet her stepdaughter Ivanka at Trump's RNC speech

• First lady Melania Trump briefly greeted Ivanka Trump, the first daughter and a White House senior adviser, before President Donald Trump's speech at the Republican National Convention on Thursday.
• An excerpt published earlier Thursday from a forthcoming book by Stephanie Winston Wolkoff, Melania's former best friend, detailed the icy relationship between Melania and Ivanka.
• Wolkoff, who played a major role in the president's inauguration, described an effort from the first lady to diminish Ivanka's role in the ceremonies, called "Operation Block Ivanka."

First lady Melania Trump briefly greeted Ivanka Trump at the Republican National Convention on the White House's South Lawn on Thursday night.

Ivanka, President Donald Trump's eldest daughter and a senior White House adviser, had just introduced her father before his speech formally accepting the Republican presidential nomination.

An excerpt published earlier on Thursday from a book by Stephanie Winston Wolkoff, Melania's former best friend, detailed an effort by the first lady called "Operation Block Ivanka" at the president's inauguration.

Wolkoff drew on secretly recorded tapes and years of friendship with Melania to write a book about their tumultuous relationship called "Melania and Me: My Years as Confidant, Advisor, and Friend to the First Lady," set to be published next week.