The protests at the 1968 Democratic National Convention were primarily driven by opposition to the Vietnam War and the perceived failure of the Johnson administration to address the concerns of anti-war activists.

Hubert Humphrey was the Democratic presidential candidate who faced significant protests at the 1968 convention. He was seen as representing the establishment and was opposed by anti-war activists who supported Eugene McCarthy and Robert Kennedy.

Richard Daley was the police superintendent of Chicago who ordered the violent crackdown on protesters at the 1968 Democratic National Convention. His actions led to widespread criticism and accusations of police brutality.

The 1972 Republican National Convention in Miami Beach, Florida, saw protests over the Vietnam War and the nomination of Richard Nixon. Anti-war activists and Nixon's opponents staged demonstrations and clashed with police.

The 2000 Republican National Convention in Philadelphia saw protests primarily focused on opposition to abortion. Anti-abortion activists and religious groups staged demonstrations and rallies to express their disapproval of the party's stance on the issue.

The 2004 Democratic National Convention in Boston, Massachusetts, faced protests over the Iraq War and the policies of President George W. Bush. Anti-war activists and Bush's critics staged demonstrations and rallies to express their opposition to the administration's actions.

The 2008 Republican National Convention in Saint Paul, Minnesota, saw protests primarily focused on concern over the economy. Activists and protesters expressed their dissatisfaction with the state of the economy and the policies of the Bush administration.

The 2012 Republican National Convention in Tampa, Florida, faced protests over the policies of President Barack Obama and the Democratic Party. Conservative activists and Obama's critics staged demonstrations and rallies to express their opposition to the administration's actions.

The 2016 Democratic National Convention in Philadelphia saw protests primarily focused on support for Bernie Sanders. Sanders' supporters expressed their disappointment with the nomination of Hillary Clinton and staged demonstrations and rallies to voice their concerns.

The 2020 Democratic National Convention in Milwaukee, Wisconsin, faced protests over racial injustice and police brutality. Activists and protesters expressed their outrage over the killing of George Floyd and other incidents of police violence, demanding action from the party and its candidates.

The 2020 Republican National Convention in Charlotte, North Carolina, saw protests primarily focused on support for President Donald Trump. Trump's supporters staged demonstrations and rallies to express their enthusiasm for his re-election campaign.

The 2024 Democratic National Convention is likely to face protests over climate change and environmental issues, as these topics have become increasingly prominent in the party's platform and among its supporters.

Protesters at party conventions employ a variety of tactics to express their views and influence the political process, including demonstrations and rallies, civil disobedience and sit-ins, lobbying and petitioning, and media outreach and public statements.

Party conventions typically respond to protests in a variety of ways, including ignoring them, engaging with protesters, calling in law enforcement, and changing their platform or policies. The specific response depends on the nature of the protests, the political climate, and the leadership of the party.

Protests at party conventions can have a variety of consequences, including increased public awareness of an issue, changes in party platform or policies, negative publicity for the party, and violence or arrests. The specific consequences depend on the nature of the protests, the political climate, and the response of the party and law enforcement.