Melania Trump's speech grabs spotlight at Republican convention

By Steve Holland CLEVELAND (Reuters) - Similarities between the speech delivered by Donald Trump’s wife, Melania, and remarks by first lady Michelle Obama in 2008 stole the spotlight at the Republican convention on Tuesday, a day Trump’s campaign had hoped to devote to the U.S. economy. House of Representatives Speaker Paul Ryan, the top U.S. elected Republican, was to formally put Trump's name forward later on Tuesday to be the party's presidential nominee for the Nov. 8 election. O