Kamala Harris has the momentum. Now comes the real test

Contributing sentiments towards policy:

71% : Yolanda Herbert, a 71-year-old retired school principal, says she is encouraged so far, and expects Harris would be a "dynamic president" with a level of authenticity that is greater than Trump's.
62% : When Trump delivered a big speech on the economy two days later in North Carolina he partially accomplished his goal of trying to tie Harris to Biden's economic policies.
61% : At 59, she is nearly 20 years younger than Trump, who is 78, and would be the first woman to serve as US president if elected.
61% : Speaking to tech billionaire Elon Musk during a discussion on social media platform X last Monday, Trump commented on Harris's appearance, saying she was "beautiful", referring to a Time magazine cover image of the vice-president in which he said she resembled his wife Melania.
56% : He wants Trump to win, believing interest rates will come down if he does.
55% : "Trump has been largely off message, he needs to make the transition from a Biden race to a Harris race as soon as possible . . . 
48% : "They are a team", Trump said.
47% : "When the Democratic party rallied quickly around Harris after Joe Biden dropped his re-election bid last month, it marked a leap of faith that the vice-president could electrify the centre-left of American politics and revive its chances of stopping Trump from winning a second term.
41% : Donna Brazile, a veteran Democratic strategist and former party chair, still thinks Trump has the advantage in the race against the vice-president: "She has to make a clear and convincing case that she cares about people's concerns.
34% : "They say it is the most important subject, I'm not sure it is," Trump said.
32% : "In little less than a month, and despite being the second-in-command of the US government, Harris has been able to position herself as the candidate of change in an election in which voters were desperately searching for an alternative to both Biden and Trump.
32% : Trump has shown no sign of changing his approach, however.
31% : "The biggest threat to the Harris campaign would come from Republicans, including Trump, mounting more effective attacks on her than they have so far.
31% : On September 10, she will be squaring off against Trump in their first live televised debate.
26% : "For now though, Harris has Trump scrambling -- and struggling -- to craft an effective message against her, as the two campaigns fight to define her in the eyes of voters with little time to spare before the November election.
25% : Trump is suddenly on the defensive after being the relatively comfortable frontrunner for months.
25% : Stevens, the Democratic lawmaker, says Democrats are now experienced in facing Trump and better at responding to the "vitriol and the low blows".
23% : At a conference of Black journalists in July, Trump questioned the vice-president's racial identity, saying the California-born daughter of immigrants from India and Jamaica had "happened to turn Black" a few years ago.
18% : This month Trump also falsely accused her in an online post of using artificial intelligence to embellish the crowd size at the Detroit airport rally.
15% : But some Republican strategists believe Trump has been clearly rattled by Harris's entry into the race and so far unfocused in his attacks on the vice-president, in some cases even triggering a backlash.
14% : Harris also appears to have passed one critical test in selecting Walz as the vice-presidential nominee, a counter to JD Vance, the Ohio senator tapped by Trump as his running mate.
8% : Her campaign speeches are shorter by comparison -- often lasting less than 30 minutes -- and they are far more direct in attacking Trump than Biden's were.

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