Clinton held a significant lead in national polls over Trump throughout most of 2016. In early July, Trump and Clinton were tied in major polls following the FBI's conclusion of its investigation into her emails. FBI Director James Comey concluded Clinton had been "extremely careless" in her handling of classified government material. In late July, Trump gained his first lead over Clinton in major polls following a three to four percentage point convention bounce at the Republican National Convention. This was in line with the average bounce in conventions since 2004, although it was toward the low side by historical standards. Following Clinton's seven percentage point convention bounce at the Democratic National Convention, she regained a significant lead in national polls at the start of August. In fall 2016, Clinton and Tim Kaine published "Stronger Together", which outlined their vision for the United States.