US President Joe Biden on Tuesday signed into law a US$430 billion bill that is seen as the biggest climate package in US history, while Democrats and their allies are trying to capitalise on a string of legislative victories. They're throwing money at key congressional races hoping to overcome Biden's poor approval ratings. <br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline