Ed White the first spacewalker

Overview
What if NASA's Ed White became the first spacewalker instead of USSR's Alexei Leonov?

Key Dates
1957: USSR launched the first satellite Sputnik 1.

1961: USSR cosmonaut Yuri Gagarin became the first man in space.

1963: The Vostok spaceflight program persisted instead of being cancelled. Point of divergence.

1964: NASA moved up the schedule of the upcoming Gemini 4 spacewalk mission after it received reports that USSR will launch the Vostok 11 spacewalk mission as early as mid-June 1965.

June 3, 1965: NASA 's Gemini 4 is launched. Astronaut Edward White became the first person to spacewalk.

June 14, 1965: USSR launched the Vostok 11 spacewalk mission. Vladimir Komarov is the second spacewalker.

1967: In this TL the Apollo 1 isn't as disastrous as in OTL, with the astronauts surviving.

1968: NASA's Apollo 8 flew around the Moon.

July 4, 1969: The test firing of Soviet N1 rocket is successful.

July 20, 1969: NASA astronaut Neil Armstrong is the first human to land on the Moon.

1971: Soviet Union launched the Salyut 1 space station.

1974: Cosmonaur Vladimir Komarov became the first person to land on the lunar far side in a LK spacecraft. This shocked the whole world.

1975: An Apollo spacecraft docked with a Soyuz spacecraft, marking the end of the Space Race.

1976: NASA launched a space station based on the Self-Deploying Space Station design, becoming the first space station with artificial gravity.

1981: NASA launched the first space shuttle "Columbia".

1984: Soviet space probe Vega 1 flew by Halley's comet.

1986: Challenger space shuttle disaster.

1989: NASA interplanetary probe "Galileo" is launched to Jupiter.

1991: Collapse of the USSR.

1996: NASA Mars probe Sojourner is launched.

2008: The Large Hadron Collider went online.

2010: In this TL NASA's Constellation program is not canceled by the USA. Japanese spacecraft IKAROS became the world's first interplanetary solar sail spacecraft.

2011: NASA retired its space shuttle fleet.

2016: Hillary Clinton won the U.S. presidential election.