the bbc‘s anne soy has been to western kenya on the edge of lake victoria to find out more. ht hours on the lake, this is all these fishermen could catch. these women, who have been waiting all day to buy and take the fish to the market, aren't happy either. many of them will have to go away empty—handed. over the last decade and a half, the amount of fish caught on the kenyan side of the lake has fallen from 200,000 tonnes a year, tojust 28,000. there are two major reasons. one is pollution, in terms of effluents, especially from the lake region. another reason is the issue of usage of inappropriate fishing gears and fishing methods. the lake has also been choking from the invasion of this weed, the water hyacinth. the water hyacinth is being blown back onto the water behind me and in a matter of hours it will have completely covered this part of the lake. its movement is unpredictable, but for fishermen they'd have to constantly look for accessible landing sites. that threatens their source of livelihood, so they've been forced to look for alternative means of survival. fis

. >> victoria is from buckeye lake, ohio. a senior in medicare. she relies on free preventive services provided by the aca. will you commit to insuring seniors to get their preventive care, no co-pays, no deductibles, continue to get preventive care with no out-of-pocket costs? >> preventive and wellness care is vital for so many members of our population. >> that's part of aca, you'll commit to that. >> i believe it's a part of health care and health coverage. >> and we did that. i don't mean to be rude. we did that under the aca. grace is from west lake, ohio. she's 24. she was diagnosed with stage 4 metastatic melanoma in 2015. she's still on her parents 'he health insurance purchased through the aca marketplace and benefits from the aca ban on annual lifetime coverage maximum. her first three months of treatment cost $800,000. as secretary of hhs, if the insurer asked you for an exception on out-of-pocket maximums provided in friday's executive order, will you commit to stand up for patients like grace and refuse to grant any insurer this exce