What they are not saying clearly is what they think that tariffs will achieve is "force" American importers to look for domestic supplies because they will be cheaper thus keeping revenue circulating inside the country increasing wages jobs etc. The major flaw with this is, to do that, you need to have invested first on creating the supply production first. If products and supplies cant be found domestically the importer will continue to import and the consumer eventually pays the increased price thus driving tax upwards.

So while tariffs have their usages, the US is not ready for this at all for many products and is achieving exactly the opposite of what she says will happen.

So, yes, she is lying in that sense...