Trump won the election by luck. That's all it was: luck in that he ran at a time which saw a perfect storm of disadvantages arise for a widely-unpopular/hated Democratic nominee following a 2-term Democratic presidency with historic levels of political polarization. Seeing what's since happened to the GOP in 2018 & what's about to happen to them again on Tuesday night, the Trumpist platform that he ran on - which eschews outreach to minority communities, women, & young voters - simply won't be a sustainable proposition for the party going forward.
You were saying, Mr Iowa-Sen is a tossup? I'm sure Pelosi will be enjoying her 6-8 seat House majority.
When it's all said and done, Mr Biden will win this election by much fewer than Trump's 78,000 votes in 2016. Trump won your home state by over 3 points and Texas by 6 on the backs of a wave of Hispanic support that shifted by double digits in key areas, particularly the RGV. And the GOP didn't lose a single state house.
Trump lost the election because he failed to fulfill his promises of economic populism and working class focused policies, which is not limited to just one racial group. The Suburban shift has been happening since before Obama was elected, Trump just accelerated it one cycle earlier and the Suburbs are much more moderate now, a Romneyist couldn't save it for the GOP.
Nikki Haley is eminently qualified for the presidency and is of stellar character. Unfortunately she exudes platitudes and pandering in the style of Charlie Kirk/TPUSA/Candace Owens, instead of policy that moves forward from the Tea Party and actually helps the working/middle class. That's a disaster for a general election and the GOP. This is also why she's unlikely to win the primary.