The dollar was down on Tuesday morning in Asia, with investors retreating from the safe-haven asset over fresh hopes of a COVID-19 vaccine. European Union leaders are a step closer in reaching a consensus for its proposed stimulus plan at the EU Summit, even as negotiations were extended beyond a fourth day. The U.S. Dollar Index that tracks the greenback against a basket of other currencies fell 0.16% to 95.623. The AUD/USD pair gained 0.21% to 0.7028. The Reserve Bank of Australia will release minutes from its June meeting later in the day, and Governor Philip Lowe will also give a speech. The GBP/USD pair gained 0.14% to 1.2677. The GBP held its overnight gains over the progress made at the EU Summit, with investor sentiment further boosted over fresh Brexit negotiations between the EU and the U.K. slated to begin later in the day.