The Graphic Truth: Do US party conventions help in the polls?

US presidential candidates usually get a polling boost immediately after their major party convention. But in recent years the so-called "convention bounce" is hardly guaranteed — Democratic hopeful John Kerry's numbers dipped slightly in 2004, as did Republican aspirant Mitt Romney's in 2012. Even when post-convention bumps have been bigger, that hasn't always translated into winning the White House in the end. With the DNC done and the RNC wrapping this week, we take a look at how conventions have historically affected the candidates' poll numbers.

More from GZERO Media

A woman lights a cigarette placed in a placard depicting Hungary's Prime Minister Viktor Orbán, during a demonstration, after the Hungarian parliament passed a law that bans LGBTQ+ communities from holding the annual Pride march and allows a broader constraint on freedom of assembly, in Budapest, Hungary, on March 25, 2025.
REUTERS/Marton Monus

Hungary’s capital will proceed with Saturday’s Pride parade celebrating the LGBTQ+ community, despite the rightwing national government’s recent ban on the event.

American President Donald Trump's X Page is seen displayed on a smartphone with a Tiktok logo in the background
Avishek Das / SOPA Images via Reuters Connect

In August 1991, a handful of high-ranking Soviet officials launched a military coup to halt what they believed (correctly) was the steady disintegration of the Soviet Union. Their first step was to seize control of the flow of information across the USSR by ordering state television to begin broadcasting a Bolshoi Theatre production ofSwan Lake on a continuous loop until further notice.

Small businesses are more than just corner shops and local services. They’re a driving force of economic growth, making up 90% of all businesses globally. As the global middle class rapidly expands, new opportunities are emerging for entrepreneurs to launch and grow small businesses.

U.S. President Donald Trump, German Chancellor Friedrich Merz and NATO Secretary General Mark Rutte at a NATO leaders summit in The Hague, Netherlands June 25, 2025.
REUTERS

The two-day NATO summit at the Hague wrapped on Wednesday. The top line? At an event noticeably scripted to heap flattery on Donald Trump, alliance members agreed to the US president’s demand they boost military spending to 5% of GDP over the next decade.